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GetEventsWindows2008.cpp
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GetEventsWindows2008.cpp
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#include <windows.h>
#include <sddl.h>
#include <stdio.h>
#include <winevt.h>
#pragma comment(lib, "wevtapi.lib")
#pragma comment(lib, "advapi32.lib")
#pragma comment(lib, "ole32.lib")
#include "EventLogReader.h"
// Create a session connect for the remote computer. Set the
// Domain, User, and Password member to NULL to specify
// the current user.
EVT_HANDLE ConnectToRemoteHost(LPWSTR lpwsRemote, LPWSTR lpwsUsername, LPWSTR lpwsPassword)
{
DWORD status = ERROR_SUCCESS;
EVT_HANDLE hRemote = NULL;
EVT_RPC_LOGIN Credentials;
if(*lpwsRemote == '\0')
return hRemote;
RtlZeroMemory(&Credentials, sizeof(EVT_RPC_LOGIN));
Credentials.Server = lpwsRemote;
// Username & Password
if(lpwsUsername == NULL)
{
Credentials.Domain = NULL;
Credentials.User = NULL;
Credentials.Password = NULL;
}
else
{
// Determine the domain/username
WCHAR domain[MAX_NAME];
WCHAR username[MAX_NAME];
int i = 0;
while(lpwsUsername[i] != '\\')
{
domain[i] = lpwsUsername[i];
i++;
}
domain[i] = 0;
i++;
wcscpy(username, lpwsUsername+i);
Credentials.Domain = domain;
Credentials.User = username;
Credentials.Password = lpwsPassword;
}
Credentials.Flags = EvtRpcLoginAuthNegotiate;
// This call creates a remote seesion context; it does not actually
// create a connection to the remote computer. The connection to
// the remote computer happens when you use the context.
hRemote = EvtOpenSession(EvtRpcLogin, &Credentials, 0, 0);
if(NULL == hRemote)
PrintError(L"EvtOpenSession");
SecureZeroMemory(&Credentials, sizeof(EVT_RPC_LOGIN));
return hRemote;
}
DWORD ListEventChannels(EVT_HANDLE hRemote)
{
EVT_HANDLE hChannels = NULL;
LPWSTR pBuffer = NULL;
LPWSTR pTemp = NULL;
DWORD dwBufferSize = 0;
DWORD dwBufferUsed = 0;
DWORD status = ERROR_SUCCESS;
// Get a handle to an enumerator that contains all the names of the
// channels registered on the computer.
hChannels = EvtOpenChannelEnum(hRemote, 0);
if (NULL == hChannels)
{
status = PrintError(L"EvtOpenChannelEnum");
goto cleanup;
}
// Enumerate through the list of channel names. If the buffer is not big
// enough reallocate the buffer. To get the configuration information for
// a channel, call the EvtOpenChannelConfig function.
while (true)
{
if (!EvtNextChannelPath(hChannels, dwBufferSize, pBuffer, &dwBufferUsed))
{
status = GetLastError();
if (ERROR_NO_MORE_ITEMS == status)
break;
else if (ERROR_INSUFFICIENT_BUFFER == status)
{
dwBufferSize = dwBufferUsed;
pTemp = (LPWSTR)realloc(pBuffer, dwBufferSize * sizeof(WCHAR));
if (pTemp)
{
pBuffer = pTemp;
pTemp = NULL;
EvtNextChannelPath(hChannels, dwBufferSize, pBuffer, &dwBufferUsed);
}
else
{
wprintf(L"SW_ERROR: realloc failed with %lu\n", status);
status = ERROR_OUTOFMEMORY;
goto cleanup;
}
}
else
{
status = PrintError(L"EvtNextChannelPath");
goto cleanup;
}
}
wprintf(L"%s\n", pBuffer);
}
cleanup:
if (hChannels)
EvtClose(hChannels);
if (pBuffer)
free(pBuffer);
return status;
}
// Print the channel's configuration properties. Use the EVT_CHANNEL_CONFIG_PROPERTY_ID
// enumeration values to loop through all the properties.
DWORD ListChannelProviders(EVT_HANDLE hRemote, LPWSTR pwsChannelName)
{
PEVT_VARIANT pProperty = NULL; // Buffer that receives the property value
PEVT_VARIANT pTemp = NULL;
DWORD dwBufferSize = 0;
DWORD dwBufferUsed = 0;
DWORD status = ERROR_SUCCESS;
EVT_HANDLE hChannel = NULL;
hChannel = EvtOpenChannelConfig(hRemote, pwsChannelName, 0);
if (NULL == hChannel) // Fails with 15007 (ERROR_EVT_CHANNEL_NOT_FOUND) if the channel is not found
{
status = PrintError(L"EvtOpenChannelConfig");
goto cleanup;
}
// Get the specified property. If the buffer is too small, reallocate it.
if(!EvtGetChannelConfigProperty(hChannel, EvtChannelPublisherList, 0, dwBufferSize, pProperty, &dwBufferUsed))
{
status = GetLastError();
if(ERROR_INSUFFICIENT_BUFFER == status)
{
dwBufferSize = dwBufferUsed;
pTemp = (PEVT_VARIANT)realloc(pProperty, dwBufferSize);
if (pTemp)
{
pProperty = pTemp;
pTemp = NULL;
EvtGetChannelConfigProperty(hChannel, EvtChannelPublisherList, 0, dwBufferSize, pProperty, &dwBufferUsed);
}
else
{
wprintf(L"SW_ERROR: realloc failed with %lu\n", status);
status = ERROR_OUTOFMEMORY;
goto cleanup;
}
}
if(ERROR_SUCCESS != (status = GetLastError()))
{
status = PrintError(L"EvtGetChannelConfigProperty");
goto cleanup;
}
}
for (DWORD i = 0; i < pProperty->Count; i++)
wprintf(L"%s\n", pProperty->StringArr[i]);
cleanup:
if (hChannel)
EvtClose(hChannel);
if (pProperty)
free(pProperty);
return status;
}
DWORD GetNewestEventRecordNumber(EVT_HANDLE hRemote, LPWSTR pwsPath, UINT64& dwNewest)
{
return GetEventRecordNumber(hRemote, pwsPath, EvtQueryReverseDirection, dwNewest);
}
DWORD GetOldestEventRecordNumber(EVT_HANDLE hRemote, LPWSTR pwsPath, UINT64& dwOldest)
{
return GetEventRecordNumber(hRemote, pwsPath, EvtQueryForwardDirection, dwOldest);
}
DWORD GetEventRecordNumber(EVT_HANDLE hRemote, LPWSTR pwsPath, EVT_QUERY_FLAGS flDirection, UINT64& dwRecordNumber)
{
DWORD status = ERROR_SUCCESS;
DWORD dwReturned = 0;
DWORD dwBufferSize = 0;
DWORD dwBufferUsed = 0;
DWORD dwPropertyCount = 0;
EVT_HANDLE hResults = NULL;
EVT_HANDLE hEvents[ARRAY_SIZE];
EVT_HANDLE hContext = NULL;
PEVT_VARIANT pRenderedValues = NULL;
// Query in forward direction, so the oldest is on the top
hResults = EvtQuery(hRemote, pwsPath, L"*", EvtQueryChannelPath | flDirection);
if(NULL == hResults)
{
status = PrintError(L"EvtQuery");
goto cleanup;
}
// Get the first event from the result set
if(!EvtNext(hResults, 1, hEvents, INFINITE, 0, &dwReturned))
{
status = PrintError(L"EvtNext");
goto cleanup;
}
// Identify the components of the event that you want to render. In this case,
// render the system section of the event.
hContext = EvtCreateRenderContext(0, NULL, EvtRenderContextSystem);
if(NULL == hContext)
{
status = PrintError(L"EvtCreateRenderContext");
goto cleanup;
}
// When you render the user data or system section of the event, you must specify
// the EvtRenderEventValues flag. The function returns an array of variant values
// for each element in the user data or system section of the event. For user data
// or event data, the values are returned in the same order as the elements are
// defined in the event. For system data, the values are returned in the order defined
// in the EVT_SYSTEM_PROPERTY_ID enumeration.
if(!EvtRender(hContext, hEvents[0], EvtRenderEventValues, dwBufferSize, pRenderedValues, &dwBufferUsed, &dwPropertyCount))
{
if(ERROR_INSUFFICIENT_BUFFER == (status = GetLastError()))
{
dwBufferSize = dwBufferUsed;
pRenderedValues = (PEVT_VARIANT)malloc(dwBufferSize);
if(pRenderedValues)
{
EvtRender(hContext, hEvents[0], EvtRenderEventValues, dwBufferSize, pRenderedValues, &dwBufferUsed, &dwPropertyCount);
}
else
{
wprintf(L"SW_ERROR: malloc failed with %lu\n", status);
status = ERROR_OUTOFMEMORY;
goto cleanup;
}
}
if(ERROR_SUCCESS != (status = GetLastError()))
{
status = PrintError(L"EvtRender");
goto cleanup;
}
}
// Event Record ID
dwRecordNumber = pRenderedValues[EvtSystemEventRecordId].UInt64Val;
cleanup:
if(hEvents[0])
EvtClose(hEvents[0]);
if(hResults)
EvtClose(hResults);
if(hContext)
EvtClose(hContext);
if(pRenderedValues)
free(pRenderedValues);
return status;
}
DWORD CountEvents(EVT_HANDLE hRemote, LPWSTR pwsQuery, UINT64& dwCount)
{
DWORD status = ERROR_SUCCESS;
EVT_HANDLE hResults = NULL;
DWORD dwReturned = 0;
EVT_HANDLE hEvents[ARRAY_SIZE];
DWORD dwRecord = NULL;
//wprintf(L"pwsQuery <%ws>\n", pwsQuery);
// Query the host
hResults = EvtQuery(hRemote, NULL, pwsQuery, EvtQueryChannelPath | EvtQueryForwardDirection);
if(NULL == hResults)
{
status = PrintError(L"EvtQuery");
goto cleanup;
}
dwCount = 0;
while(true)
{
// Get a block of events from the result set
if(!EvtNext(hResults, ARRAY_SIZE, hEvents, INFINITE, 0, &dwReturned))
{
if(ERROR_NO_MORE_ITEMS != (status = GetLastError()))
status = PrintError(L"EvtNext");
else
status = ERROR_SUCCESS;
goto cleanup;
}
dwCount = dwCount + dwReturned;
}
cleanup:
for(DWORD i = 0; i < dwReturned; i++)
if(NULL != hEvents[i])
EvtClose(hEvents[i]);
if(hResults)
EvtClose(hResults);
return status;
}
DWORD DumpEvents(EVT_HANDLE hRemote, LPWSTR pwsQuery, const char *printMethod)
{
DWORD status = ERROR_SUCCESS;
EVT_HANDLE hResults = NULL;
DWORD dwReturned = 0;
EVT_HANDLE hEvents[ARRAY_SIZE];
DWORD dwRecord = NULL;
//wprintf(L"pwsQuery <%ws>\n", pwsQuery);
// Query the host
hResults = EvtQuery(hRemote, NULL, pwsQuery, EvtQueryChannelPath | EvtQueryForwardDirection);
if(NULL == hResults)
{
status = PrintError(L"EvtQuery");
goto cleanup;
}
while(true)
{
// Get a block of events from the result set
if(!EvtNext(hResults, ARRAY_SIZE, hEvents, INFINITE, 0, &dwReturned))
{
if(ERROR_NO_MORE_ITEMS != (status = GetLastError()))
status = PrintError(L"EvtNext");
goto cleanup;
}
// For each event, render and print the event details
if(printMethod == "list")
{
for(DWORD i = 0; i < dwReturned; i++)
{
if(ERROR_SUCCESS == (status = PrintEventList(hEvents[i])))
{
EvtClose(hEvents[i]);
hEvents[i] = NULL;
}
else
goto cleanup;
}
}
else if(printMethod == "xml")
{
for(DWORD i = 0; i < dwReturned; i++)
{
if(ERROR_SUCCESS == (status = PrintEventXML(hRemote, hEvents[i])))
{
EvtClose(hEvents[i]);
hEvents[i] = NULL;
}
else
goto cleanup;
}
}
else if(printMethod == "detail")
{
for(DWORD i = 0; i < dwReturned; i++)
{
if(ERROR_SUCCESS == (status = PrintEventDetails(hRemote, hEvents[i])))
{
EvtClose(hEvents[i]);
hEvents[i] = NULL;
}
else
goto cleanup;
}
}
else if(printMethod == "report")
{
for (DWORD i = 0; i < dwReturned; i++)
{
if(ERROR_SUCCESS == (status = PrintEventReport(hRemote, hEvents[i])))
{
EvtClose(hEvents[i]);
hEvents[i] = NULL;
}
else
goto cleanup;
}
}
else goto cleanup;
}
cleanup:
for(DWORD i = 0; i < dwReturned; i++)
if(NULL != hEvents[i])
EvtClose(hEvents[i]);
if(hResults)
{
EvtClose(hResults);
hResults = NULL;
}
return status;
}
DWORD PrintEventDetails(EVT_HANDLE hRemote, EVT_HANDLE hEvent)
{
DWORD status = ERROR_SUCCESS;
EVT_HANDLE hContext = NULL;
DWORD dwBufferSize = 0;
DWORD dwBufferUsed = 0;
DWORD dwPropertyCount = 0;
PEVT_VARIANT pRenderedValues = NULL;
LPOLESTR pwsSid = NULL;
ULONGLONG ullTimeStamp = 0;
SYSTEMTIME stUTC, stLocal;
FILETIME ft;
DWORD dwSize = MAX_NAME;
WCHAR lpName[MAX_NAME];
WCHAR lpDomain[MAX_NAME];
SID_NAME_USE SidType;
EVT_HANDLE hProviderMetadata = NULL;
LPWSTR pwsMessage = NULL;
// Identify the components of the event that you want to render. In this case,
// render the system section of the event.
hContext = EvtCreateRenderContext(0, NULL, EvtRenderContextSystem);
if(NULL == hContext)
{
status = PrintError(L"EvtCreateRenderContext");
goto cleanup;
}
// When you render the user data or system section of the event, you must specify
// the EvtRenderEventValues flag. The function returns an array of variant values
// for each element in the user data or system section of the event. For user data
// or event data, the values are returned in the same order as the elements are
// defined in the event. For system data, the values are returned in the order defined
// in the EVT_SYSTEM_PROPERTY_ID enumeration.
if(!EvtRender(hContext, hEvent, EvtRenderEventValues, dwBufferSize, pRenderedValues, &dwBufferUsed, &dwPropertyCount))
{
if(ERROR_INSUFFICIENT_BUFFER == (status = GetLastError()))
{
dwBufferSize = dwBufferUsed;
pRenderedValues = (PEVT_VARIANT)malloc(dwBufferSize);
if(pRenderedValues)
EvtRender(hContext, hEvent, EvtRenderEventValues, dwBufferSize, pRenderedValues, &dwBufferUsed, &dwPropertyCount);
else
{
wprintf(L"SW_ERROR: malloc failed for EvtRender with %lu\n", GetLastError());
status = ERROR_OUTOFMEMORY;
goto cleanup;
}
}
if(ERROR_SUCCESS != (status = GetLastError()))
{
status = PrintError(L"EvtRender");
goto cleanup;
}
}
// Event Record ID
wprintf(L"%I64u;", pRenderedValues[EvtSystemEventRecordId].UInt64Val);
// Time Created - convert to local time
ullTimeStamp = pRenderedValues[EvtSystemTimeCreated].FileTimeVal;
ft.dwHighDateTime = (DWORD)((ullTimeStamp >> 32) & 0xFFFFFFFF);
ft.dwLowDateTime = (DWORD)(ullTimeStamp & 0xFFFFFFFF);
FileTimeToSystemTime(&ft, &stUTC);
SystemTimeToTzSpecificLocalTime(NULL, &stUTC, &stLocal);
wprintf(L"%02d-%02d-%02d %02d:%02d:%02d;",
stLocal.wYear, stLocal.wMonth, stLocal.wDay, stLocal.wHour, stLocal.wMinute, stLocal.wSecond);
// Event ID
DWORD EventID = pRenderedValues[EvtSystemEventID].UInt16Val;
wprintf(L"%lu;", EventID);
// Level
wprintf(L"%u;", (EvtVarTypeNull == pRenderedValues[EvtSystemLevel].Type) ? 0 : pRenderedValues[EvtSystemLevel].ByteVal);
// Provider Name
LPCWSTR pwsProviderName =pRenderedValues[EvtSystemProviderName].StringVal;
wprintf(L"%s;", pwsProviderName);
// Computer
wprintf(L"%s;", pRenderedValues[EvtSystemComputer].StringVal);
// Username & Domain
if(EvtVarTypeNull != pRenderedValues[EvtSystemUserID].Type)
{
if( !LookupAccountSidW(NULL, pRenderedValues[EvtSystemUserID].SidVal,
lpName, &dwSize, lpDomain,
&dwSize, &SidType))
{
wcscpy(lpName, L"N/A");
wcscpy(lpDomain, L"N/A");
}
}
else
{
wcscpy(lpName, L"N/A");
wcscpy(lpDomain, L"N/A");
}
wprintf(L"%s;", lpName);
wprintf(L"%s;", lpDomain);
// Get the handle to the provider's metadata that contains the message strings.
hProviderMetadata = EvtOpenPublisherMetadata(hRemote, pwsProviderName, NULL, 0, 0);
if(NULL == hProviderMetadata)
{
status = PrintError(L"EvtOpenPublisherMetadata");
goto cleanup;
}
// Description
pwsMessage = GetMessageString(hProviderMetadata, hEvent, EvtFormatMessageEvent);
if(pwsMessage)
{
wprintf(L"%s\n", ReplaceCarriageReturn(pwsMessage));
free(pwsMessage);
pwsMessage = NULL;
}
cleanup:
if(hContext)
{
EvtClose(hContext);
hContext = NULL;
}
if(pRenderedValues)
{
free(pRenderedValues);
pRenderedValues = NULL;
}
if(hProviderMetadata)
{
EvtClose(hProviderMetadata);
hProviderMetadata = NULL;
}
return status;
}
DWORD PrintEventReport(EVT_HANDLE hRemote, EVT_HANDLE hEvent)
{
DWORD status = ERROR_SUCCESS;
EVT_HANDLE hContext = NULL;
DWORD dwBufferSize = 0;
DWORD dwBufferUsed = 0;
DWORD dwPropertyCount = 0;
PEVT_VARIANT pRenderedValues = NULL;
LPOLESTR pwsSid = NULL;
ULONGLONG ullTimeStamp = 0;
SYSTEMTIME stUTC, stLocal;
FILETIME ft;
DWORD dwSize = MAX_NAME;
EVT_HANDLE hProviderMetadata = NULL;
LPWSTR pwsMessage = NULL;
// Identify the components of the event that you want to render. In this case,
// render the system section of the event.
hContext = EvtCreateRenderContext(0, NULL, EvtRenderContextSystem);
if(NULL == hContext)
{
status = PrintError(L"EvtCreateRenderContext");
goto cleanup;
}
// When you render the user data or system section of the event, you must specify
// the EvtRenderEventValues flag. The function returns an array of variant values
// for each element in the user data or system section of the event. For user data
// or event data, the values are returned in the same order as the elements are
// defined in the event. For system data, the values are returned in the order defined
// in the EVT_SYSTEM_PROPERTY_ID enumeration.
if(!EvtRender(hContext, hEvent, EvtRenderEventValues, dwBufferSize, pRenderedValues, &dwBufferUsed, &dwPropertyCount))
{
if(ERROR_INSUFFICIENT_BUFFER == (status = GetLastError()))
{
dwBufferSize = dwBufferUsed;
pRenderedValues = (PEVT_VARIANT)malloc(dwBufferSize);
if(pRenderedValues)
EvtRender(hContext, hEvent, EvtRenderEventValues, dwBufferSize, pRenderedValues, &dwBufferUsed, &dwPropertyCount);
else
{
wprintf(L"SW_ERROR: malloc failed for EvtRender with %lu\n", GetLastError());
status = ERROR_OUTOFMEMORY;
goto cleanup;
}
}
if(ERROR_SUCCESS != (status = GetLastError()))
{
status = PrintError(L"EvtRender");
goto cleanup;
}
}
// Event Record ID
wprintf(L"%I64u | ", pRenderedValues[EvtSystemEventRecordId].UInt64Val);
// Time Created - convert to local time
ullTimeStamp = pRenderedValues[EvtSystemTimeCreated].FileTimeVal;
ft.dwHighDateTime = (DWORD)((ullTimeStamp >> 32) & 0xFFFFFFFF);
ft.dwLowDateTime = (DWORD)(ullTimeStamp & 0xFFFFFFFF);
FileTimeToSystemTime(&ft, &stUTC);
SystemTimeToTzSpecificLocalTime(NULL, &stUTC, &stLocal);
wprintf(L"%02d-%02d-%02d %02d:%02d:%02d | ",
stLocal.wYear, stLocal.wMonth, stLocal.wDay, stLocal.wHour, stLocal.wMinute, stLocal.wSecond);
// Computer
if(wcslen(pRenderedValues[EvtSystemComputer].StringVal) > 20)
wprintf(L"%.18s.. | ", pRenderedValues[EvtSystemComputer].StringVal);
else
wprintf(L"%-20s | ", pRenderedValues[EvtSystemComputer].StringVal);
// Provider Name
LPCWSTR pwsProviderName =pRenderedValues[EvtSystemProviderName].StringVal;
if(wcslen(pwsProviderName) > 40)
wprintf(L"%.38s.. | ", pwsProviderName);
else
wprintf(L"%-40s | ", pwsProviderName);
// Event ID
DWORD EventID = pRenderedValues[EvtSystemEventID].UInt16Val;
wprintf(L"%4lu | ", EventID);
// Get the handle to the provider's metadata that contains the message strings.
hProviderMetadata = EvtOpenPublisherMetadata(hRemote, pwsProviderName, NULL, 0, 0);
if(NULL == hProviderMetadata)
{
status = PrintError(L"EvtOpenPublisherMetadata");
goto cleanup;
}
// Level
pwsMessage = GetMessageString(hProviderMetadata, hEvent, EvtFormatMessageLevel);
if(pwsMessage)
{
wprintf(L"%-11s | ", CharUpperW(pwsMessage));
free(pwsMessage);
pwsMessage = NULL;
}
// Message
pwsMessage = GetMessageString(hProviderMetadata, hEvent, EvtFormatMessageEvent);
if(pwsMessage)
{
wprintf(L"%s\n", ReplaceCarriageReturn(pwsMessage));
free(pwsMessage);
pwsMessage = NULL;
}
cleanup:
if(hContext)
{
EvtClose(hContext);
hContext = NULL;
}
if(pRenderedValues)
{
free(pRenderedValues);
pRenderedValues = NULL;
}
if(hProviderMetadata)
{
EvtClose(hProviderMetadata);
hProviderMetadata = NULL;
}
return status;
}
DWORD PrintEventXML(EVT_HANDLE hRemote, EVT_HANDLE hEvent)
{
DWORD status = ERROR_SUCCESS;
EVT_HANDLE hContext = NULL;
DWORD dwBufferSize = 0;
DWORD dwBufferUsed = 0;
DWORD dwPropertyCount = 0;
PEVT_VARIANT pRenderedValues = NULL;
LPOLESTR pwsSid = NULL;
ULONGLONG ullTimeStamp = 0;
DWORD dwSize = MAX_NAME;
EVT_HANDLE hProviderMetadata = NULL;
LPWSTR pwsMessage = NULL;
// Identify the components of the event that you want to render. In this case,
// render the system section of the event.
hContext = EvtCreateRenderContext(0, NULL, EvtRenderContextSystem);
if(NULL == hContext)
{
status = PrintError(L"EvtCreateRenderContext");
goto cleanup;
}
// When you render the user data or system section of the event, you must specify
// the EvtRenderEventValues flag. The function returns an array of variant values
// for each element in the user data or system section of the event. For user data
// or event data, the values are returned in the same order as the elements are
// defined in the event. For system data, the values are returned in the order defined
// in the EVT_SYSTEM_PROPERTY_ID enumeration.
if(!EvtRender(hContext, hEvent, EvtRenderEventValues, dwBufferSize, pRenderedValues, &dwBufferUsed, &dwPropertyCount))
{
if(ERROR_INSUFFICIENT_BUFFER == (status = GetLastError()))
{
dwBufferSize = dwBufferUsed;
pRenderedValues = (PEVT_VARIANT)malloc(dwBufferSize);
if(pRenderedValues)
EvtRender(hContext, hEvent, EvtRenderEventValues, dwBufferSize, pRenderedValues, &dwBufferUsed, &dwPropertyCount);
else
{
wprintf(L"SW_ERROR: malloc failed for EvtRender with %lu\n", GetLastError());
status = ERROR_OUTOFMEMORY;
goto cleanup;
}
}
if(ERROR_SUCCESS != (status = GetLastError()))
{
status = PrintError(L"EvtRender");
goto cleanup;
}
}
// Provider Name
LPCWSTR pwsProviderName =pRenderedValues[EvtSystemProviderName].StringVal;
// Get the handle to the provider's metadata that contains the message strings.
hProviderMetadata = EvtOpenPublisherMetadata(hRemote, pwsProviderName, NULL, 0, 0);
if(NULL == hProviderMetadata)
{
status = PrintError(L"EvtOpenPublisherMetadata");
goto cleanup;
}
pwsMessage = GetMessageString(hProviderMetadata, hEvent, EvtFormatMessageXml);
if(pwsMessage)
{
wprintf(L"%s\n\n", pwsMessage);
free(pwsMessage);
pwsMessage = NULL;
}
cleanup:
if(hContext)
{
EvtClose(hContext);
hContext = NULL;
}
if(pRenderedValues)
{
free(pRenderedValues);
pRenderedValues = NULL;
}
if(hProviderMetadata)
{
EvtClose(hProviderMetadata);
hProviderMetadata = NULL;
}
return status;
}
DWORD PrintEventList(EVT_HANDLE hEvent)
{
DWORD status = ERROR_SUCCESS;
EVT_HANDLE hContext = NULL;
DWORD dwBufferSize = 0;
DWORD dwBufferUsed = 0;
DWORD dwPropertyCount = 0;
PEVT_VARIANT pRenderedValues = NULL;
LPOLESTR pwsSid = NULL;
ULONGLONG ullTimeStamp = 0;
SYSTEMTIME stUTC, stLocal;
FILETIME ft;
DWORD dwSize = MAX_NAME;
WCHAR lpName[MAX_NAME];
WCHAR lpDomain[MAX_NAME];
SID_NAME_USE SidType;
// Identify the components of the event that you want to render. In this case,
// render the system section of the event.
hContext = EvtCreateRenderContext(0, NULL, EvtRenderContextSystem);
if(NULL == hContext)
{
status = PrintError(L"EvtCreateRenderContext");
goto cleanup;
}
// When you render the user data or system section of the event, you must specify
// the EvtRenderEventValues flag. The function returns an array of variant values
// for each element in the user data or system section of the event. For user data
// or event data, the values are returned in the same order as the elements are
// defined in the event. For system data, the values are returned in the order defined
// in the EVT_SYSTEM_PROPERTY_ID enumeration.
if(!EvtRender(hContext, hEvent, EvtRenderEventValues, dwBufferSize, pRenderedValues, &dwBufferUsed, &dwPropertyCount))
{
if(ERROR_INSUFFICIENT_BUFFER == (status = GetLastError()))
{
dwBufferSize = dwBufferUsed;
pRenderedValues = (PEVT_VARIANT)malloc(dwBufferSize);
if(pRenderedValues)
EvtRender(hContext, hEvent, EvtRenderEventValues, dwBufferSize, pRenderedValues, &dwBufferUsed, &dwPropertyCount);
else
{
wprintf(L"SW_ERROR: malloc failed for EvtRender with %lu\n", GetLastError());
status = ERROR_OUTOFMEMORY;
goto cleanup;
}
}
if(ERROR_SUCCESS != (status = GetLastError()))
{
status = PrintError(L"EvtRender");
goto cleanup;
}
}
// Event Record ID
wprintf(L"%I64u;", pRenderedValues[EvtSystemEventRecordId].UInt64Val);
// Time Created - convert to local time
ullTimeStamp = pRenderedValues[EvtSystemTimeCreated].FileTimeVal;
ft.dwHighDateTime = (DWORD)((ullTimeStamp >> 32) & 0xFFFFFFFF);
ft.dwLowDateTime = (DWORD)(ullTimeStamp & 0xFFFFFFFF);
FileTimeToSystemTime(&ft, &stUTC);
SystemTimeToTzSpecificLocalTime(NULL, &stUTC, &stLocal);
wprintf(L"%02d-%02d-%02d %02d:%02d:%02d;",
stLocal.wYear, stLocal.wMonth, stLocal.wDay, stLocal.wHour, stLocal.wMinute, stLocal.wSecond);
// Event ID
DWORD EventID = pRenderedValues[EvtSystemEventID].UInt16Val;
wprintf(L"%lu;", EventID);
// Level
wprintf(L"%u;", (EvtVarTypeNull == pRenderedValues[EvtSystemLevel].Type) ? 0 : pRenderedValues[EvtSystemLevel].ByteVal);
// Provider Name
LPCWSTR pwsProviderName =pRenderedValues[EvtSystemProviderName].StringVal;
wprintf(L"%s;", pwsProviderName);
// Computer
wprintf(L"%s;", pRenderedValues[EvtSystemComputer].StringVal);
// Username & Domain
if(EvtVarTypeNull != pRenderedValues[EvtSystemUserID].Type)
{
if( !LookupAccountSidW(NULL, pRenderedValues[EvtSystemUserID].SidVal,
lpName, &dwSize, lpDomain,
&dwSize, &SidType))
{
wcscpy(lpName, L"N/A");
wcscpy(lpDomain, L"N/A");
}
}
else
{
wcscpy(lpName, L"N/A");
wcscpy(lpDomain, L"N/A");
}
wprintf(L"%s;%s;N/A;N/A;\n", lpName, lpDomain); // N/A for insertion strings at the mo!!
cleanup:
if(hContext)
{
EvtClose(hContext);
hContext = NULL;
}
if(pRenderedValues)
{
free(pRenderedValues);
pRenderedValues = NULL;
}
return status;
}
// Gets the specified message string from the event. If the event does not
// contain the specified message, the function returns NULL.
LPWSTR GetMessageString(EVT_HANDLE hMetadata, EVT_HANDLE hEvent, EVT_FORMAT_MESSAGE_FLAGS FormatId)
{
LPWSTR pBuffer = NULL;
DWORD dwBufferSize = 0;
DWORD dwBufferUsed = 0;
DWORD status = 0;
if(!EvtFormatMessage(hMetadata, hEvent, 0, 0, NULL, FormatId, dwBufferSize, pBuffer, &dwBufferUsed))
{
status = GetLastError();
if(ERROR_INSUFFICIENT_BUFFER == status)
{
// An event can contain one or more keywords. The function returns keywords
// as a list of keyword strings. To process the list, you need to know the
// size of the buffer, so you know when you have read the last string, or you
// can terminate the list of strings with a second null terminator character
// as this example does.
if((EvtFormatMessageKeyword == FormatId))
pBuffer[dwBufferSize-1] = L'\0';
else
dwBufferSize = dwBufferUsed;
pBuffer = (LPWSTR)malloc(dwBufferSize * sizeof(WCHAR));
if(pBuffer)
{
EvtFormatMessage(hMetadata, hEvent, 0, 0, NULL, FormatId, dwBufferSize, pBuffer, &dwBufferUsed);
// Add the second null terminator character.
if((EvtFormatMessageKeyword == FormatId))
pBuffer[dwBufferUsed-1] = L'\0';
}
else
wprintf(L"SW_ERROR: malloc failed for EvtFormatMessage\n");
}
else if(ERROR_EVT_MESSAGE_NOT_FOUND == status || ERROR_EVT_MESSAGE_ID_NOT_FOUND == status)
;
else
PrintError(L"EvtFormatMessage");
}
return pBuffer;
}
DWORD PrintError(LPWSTR lpszFunction)
{
// Retrieve the system error message for the last-error code
LPWSTR lpMsgBuf;
DWORD dw = GetLastError();
FormatMessageW(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
dw,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPWSTR) &lpMsgBuf,
0, NULL );
// Print the error message and exit the process
wprintf(L"SW_ERROR: %ws failed with error %d: %ws\n", lpszFunction, dw, lpMsgBuf);
LocalFree(lpMsgBuf);
return dw;
}
LPWSTR ReplaceCarriageReturn(LPWSTR lpText)
{
LPWSTR pBuffer = NULL;
int i, j, textLen;
if(wcschr(lpText, L'\n'))