Leaked source code of windows server 2003
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

1038 lines
26 KiB

//============================================================================
// Copyright (c) 1995, Microsoft Corporation
//
// File: api.c
//
// History:
// Abolade Gbadegesin July-25-1995 Created
//
// API entry-points for tracing dll
//============================================================================
#include <nt.h>
#include <ntrtl.h>
#include <nturtl.h>
#include <windows.h>
#include <rtutils.h>
#include <stdlib.h>
#include "trace.h"
//#define STRSAFE_LIB
#include <strsafe.h>
#define ENTER_TRACE_API(lpserver) \
(((lpserver)!=NULL) && ((lpserver)->TS_StopEvent != NULL))
//
// called before any other functions; responsible for creating
// and initializing a client structure for the caller
// and notifying the server of the new client
//
DWORD
APIENTRY
TraceRegisterEx(
IN LPCTSTR lpszCallerName,
IN DWORD dwFlags
) {
DWORD dwErr, dwClientID;
LPTRACE_SERVER lpserver;
LPTRACE_CLIENT lpclient, *lplpc, *lplpcstart, *lplpcend;
HRESULT hrResult;
if (!lpszCallerName)
return INVALID_TRACEID;
lpserver = GET_TRACE_SERVER();
ASSERTMSG ("Could not create trace server ", lpserver!=NULL);
if (!lpserver)
return INVALID_TRACEID;
TRACE_ACQUIRE_WRITELOCK(lpserver);
//
// complete the console thread event creations if not done before
//
if (lpserver->TS_TableEvent == NULL) {
dwErr = TraceCreateServerComplete(lpserver);
if (dwErr != 0) {
TRACE_RELEASE_WRITELOCK(lpserver);
return INVALID_TRACEID;
}
}
lpclient = TraceFindClient(lpserver, lpszCallerName);
if (lpclient != NULL) {
//
// client already exists
//
TRACE_RELEASE_WRITELOCK(lpserver);
return (lpclient->TC_ClientID ^ CLIENT_SIGNATURE);
}
//
// find an empty space
//
lplpcstart = lpserver->TS_ClientTable;
lplpcend = lplpcstart + MAX_CLIENT_COUNT;
for (lplpc = lplpcstart; lplpc < lplpcend; lplpc++) {
if (*lplpc == NULL) { break; }
}
if (lplpc >= lplpcend) {
//
// no space in table
//
TRACE_RELEASE_WRITELOCK(lpserver);
return INVALID_TRACEID;
}
//
// create the new client and enable it
//
dwErr = TraceCreateClient(lplpc);
if (dwErr != 0) {
//
// something wrong, so abort
//
TRACE_RELEASE_WRITELOCK(lpserver);
return INVALID_TRACEID;
}
lpclient = *lplpc;
lpclient->TC_ClientID = dwClientID = (DWORD)(lplpc - lplpcstart);
hrResult = StringCchCopy(
lpclient->TC_ClientName,
MAX_CLIENTNAME_LENGTH, lpszCallerName
);
if (FAILED(hrResult))
{
TRACE_RELEASE_WRITELOCK(lpserver);
return INVALID_TRACEID;
}
//
// copy the client name in the other format as well
// sssafe
//
#ifdef UNICODE
if (wcstombs(
lpclient->TC_ClientNameA, lpclient->TC_ClientNameW,
MAX_CLIENTNAME_LENGTH //dont subtract 1
) == (size_t)-1)
{
TRACE_RELEASE_WRITELOCK(lpserver);
return INVALID_TRACEID;
}
if (lpclient->TC_ClientNameA[MAX_CLIENTNAME_LENGTH-1] != '\0')
{
TRACE_RELEASE_WRITELOCK(lpserver);
return INVALID_TRACEID;
}
#else
if (mbstowcs(
lpclient->TC_ClientNameW, lpclient->TC_ClientNameA,
MAX_CLIENTNAME_LENGTH //dont subtract 1
) == (size_t)-1)
{
TRACE_RELEASE_WRITELOCK(lpserver);
return INVALID_TRACEID;
}
if (lpclient->TC_ClientNameW[MAX_CLIENTNAME_LENGTH-1] != L'\0')
{
TRACE_RELEASE_WRITELOCK(lpserver);
return INVALID_TRACEID;
}
#endif
if ((dwFlags & TRACE_USE_FILE) || (dwFlags & TRACE_USE_CONSOLE)) {
if (dwFlags & TRACE_USE_FILE) {
lpclient->TC_Flags |= TRACEFLAGS_USEFILE;
}
if (dwFlags & TRACE_USE_CONSOLE) {
lpclient->TC_Flags |= TRACEFLAGS_USECONSOLE;
}
}
else {
lpclient->TC_Flags |= TRACEFLAGS_REGCONFIG;
}
//
// load client's configuration and open its file
// and its console buffer if necessary
//
dwErr = TraceEnableClient(lpserver, lpclient, TRUE);
if (dwErr != 0) {
//
// something wrong, so abort
//
TraceDeleteClient(lpserver, lplpc);
TRACE_RELEASE_WRITELOCK(lpserver);
return INVALID_TRACEID;
}
//
// Create trace server thread if required
//
if (g_serverThread==NULL) {
dwErr = TraceCreateServerThread(dwFlags, TRUE,TRUE); //have lock,check
if (NO_ERROR != dwErr){
TRACE_RELEASE_WRITELOCK(lpserver);
return INVALID_TRACEID;
}
}
TRACE_RELEASE_WRITELOCK(lpserver);
//
// tell server there is a new client in the table
//
SetEvent(lpserver->TS_TableEvent);
return (dwClientID ^ CLIENT_SIGNATURE);
}
DWORD
APIENTRY
TraceDeregisterEx(
IN DWORD dwTraceID,
IN DWORD dwFlags
);
//
// called to stop tracing.
// frees client state and notifies server of change
//
DWORD
APIENTRY
TraceDeregister(
IN DWORD dwTraceID
) {
return TraceDeregisterEx(dwTraceID, 0);
}
DWORD
APIENTRY
TraceDeregisterEx(
IN DWORD dwTraceID,
IN DWORD dwFlags
) {
DWORD dwErr;
LPTRACE_CLIENT *lplpc;
LPTRACE_SERVER lpserver;
// check for uninitialized traceregister.
if (dwTraceID == 0 || dwTraceID == INVALID_TRACEID)
{
ASSERT(TRUE);
return ERROR_INVALID_PARAMETER;
}
dwTraceID ^= CLIENT_SIGNATURE;
if (dwTraceID >= MAX_CLIENT_COUNT) {
return ERROR_INVALID_PARAMETER;
}
lpserver = GET_TRACE_SERVER_NO_INIT ();
if (lpserver==NULL) // rtutils being unloaded bug.
return 0;
if (!ENTER_TRACE_API(lpserver)) { return ERROR_CAN_NOT_COMPLETE; }
//
// lock the server, unless the flag says not to.
//
if (!(dwFlags & TRACE_NO_SYNCH)) { TRACE_ACQUIRE_WRITELOCK(lpserver); }
//
// get the client pointer
//
lplpc = lpserver->TS_ClientTable + dwTraceID;
dwErr = TraceDeleteClient(lpserver, lplpc);
//
// reset array for client change notifications.
// only used if server thread is not created
//
if (!g_serverThread) {
SetWaitArray(lpserver);
}
if (!(dwFlags & TRACE_NO_SYNCH)) { TRACE_RELEASE_WRITELOCK(lpserver); }
//
// tell the server that a client has left
//
SetEvent(lpserver->TS_TableEvent);
return 0;
}
DWORD
APIENTRY
TraceGetConsole(
IN DWORD dwTraceID,
OUT LPHANDLE lphConsole
) {
LPTRACE_CLIENT lpclient;
LPTRACE_SERVER lpserver;
// check for uninitialized traceregister.
if (dwTraceID == 0 || dwTraceID == INVALID_TRACEID)
{
ASSERT(TRUE);
return ERROR_INVALID_PARAMETER;
}
dwTraceID ^= CLIENT_SIGNATURE;
if (dwTraceID >= MAX_CLIENT_COUNT ||
lphConsole == NULL) {
return ERROR_INVALID_PARAMETER;
}
lpserver = GET_TRACE_SERVER_NO_INIT ();
ASSERTMSG ("Server not initialized ", lpserver);
if (!ENTER_TRACE_API(lpserver)) { return ERROR_CAN_NOT_COMPLETE; }
*lphConsole = NULL;
TRACE_ACQUIRE_READLOCK(lpserver);
lpclient = lpserver->TS_ClientTable[dwTraceID];
if (lpclient == NULL) {
TRACE_RELEASE_READLOCK(lpserver);
return ERROR_INVALID_PARAMETER;
}
TRACE_ACQUIRE_READLOCK(lpclient);
*lphConsole = lpclient->TC_Console;
TRACE_RELEASE_READLOCK(lpclient);
TRACE_RELEASE_READLOCK(lpserver);
return 0;
}
DWORD
APIENTRY
TracePrintf(
IN DWORD dwTraceID,
IN LPCTSTR lpszFormat,
IN ... OPTIONAL
) {
DWORD dwSize;
va_list arglist;
// check for uninitialized traceregister.
if (dwTraceID == 0 || dwTraceID == INVALID_TRACEID)
{
ASSERT(TRUE);
return ERROR_INVALID_PARAMETER;
}
dwTraceID ^= CLIENT_SIGNATURE;
if (dwTraceID >= MAX_CLIENT_COUNT) {
return 0;
}
if (lpszFormat==NULL)
return 0;
CREATE_SERVER_THREAD_IF_REQUIRED();
va_start(arglist, lpszFormat);
dwSize = TraceVprintfInternal(dwTraceID, 0, lpszFormat, arglist);
va_end(arglist);
return dwSize;
}
DWORD
APIENTRY
TracePrintfEx(
IN DWORD dwTraceID,
IN DWORD dwFlags,
IN LPCTSTR lpszFormat,
IN ... OPTIONAL
) {
DWORD dwSize;
va_list arglist;
// check for uninitialized traceregister.
if (dwTraceID == 0 || dwTraceID == INVALID_TRACEID)
{
ASSERT(TRUE);
return ERROR_INVALID_PARAMETER;
}
dwTraceID ^= CLIENT_SIGNATURE;
if (dwTraceID >= MAX_CLIENT_COUNT) {
return 0;
}
if (lpszFormat==NULL)
return 0;
CREATE_SERVER_THREAD_IF_REQUIRED();
va_start(arglist, lpszFormat);
dwSize = TraceVprintfInternal(dwTraceID, dwFlags, lpszFormat, arglist);
va_end(arglist);
return dwSize;
}
DWORD
APIENTRY
TraceVprintfEx(
IN DWORD dwTraceID,
IN DWORD dwFlags,
IN LPCTSTR lpszFormat,
IN va_list arglist
) {
// check for uninitialized traceregister.
if (dwTraceID == 0 || dwTraceID == INVALID_TRACEID)
{
ASSERT(TRUE);
return ERROR_INVALID_PARAMETER;
}
dwTraceID ^= CLIENT_SIGNATURE;
if (dwTraceID >= MAX_CLIENT_COUNT) {
return 0;
}
if (lpszFormat==NULL)
return 0;
CREATE_SERVER_THREAD_IF_REQUIRED();
return TraceVprintfInternal(dwTraceID, dwFlags, lpszFormat, arglist);
}
/*
Note: return 0 if error. do not return error code
*/
DWORD
TraceVprintfInternal(
IN DWORD dwTraceID,
IN DWORD dwFlags,
IN LPCTSTR lpszFormat,
IN va_list arglist
) {
SYSTEMTIME st;
DWORD dwThread;
DWORD dwErr=NO_ERROR, dwSize=0;
HRESULT hrResult=S_OK;
LPTRACE_CLIENT lpclient;
LPTRACE_SERVER lpserver;
PTCHAR szFormat, szBuffer;
BOOL bFormatBufferGlobal=FALSE, bPrintBufferGlobal = FALSE;
if (lpszFormat==NULL)
return 0;
lpserver = GET_TRACE_SERVER_NO_INIT ();
if (lpserver==NULL) // rtutils being unloaded bug.
return 0;
ASSERTMSG ("Server not initialized ", lpserver);
if (!ENTER_TRACE_API(lpserver)) { return 0; }
//
// return quickly if no output will be generated;
//
if (dwFlags & TRACE_USE_MASK) {
if (!(*(lpserver->TS_FlagsCache + dwTraceID) & (dwFlags & 0xffff0000))) {
return 0;
}
}
else {
if (!*(lpserver->TS_FlagsCache + dwTraceID)) {
return 0;
}
}
TRACE_ACQUIRE_READLOCK(lpserver);
lpclient = lpserver->TS_ClientTable[dwTraceID];
if (lpclient == NULL) {
TRACE_RELEASE_READLOCK(lpserver);
return 0;
}
TRACE_ACQUIRE_READLOCK(lpclient);
if (TRACE_CLIENT_IS_DISABLED(lpclient)) {
TRACE_RELEASE_READLOCK(lpclient);
TRACE_RELEASE_READLOCK(lpserver);
return 0;
}
if (szFormat = InterlockedExchangePointer(&g_FormatBuffer, NULL))
{
bFormatBufferGlobal = TRUE;
}
else
{
szFormat = (PTCHAR) HeapAlloc(GetProcessHeap(), 0, DEF_PRINT_BUFSIZE);
if (!szFormat) {
TRACE_RELEASE_READLOCK(lpclient);
TRACE_RELEASE_READLOCK(lpserver);
return 0;
}
}
if (szBuffer = InterlockedExchangePointer(&g_PrintBuffer, NULL))
{
bPrintBufferGlobal = TRUE;
}
else
{
szBuffer = (PTCHAR) HeapAlloc(GetProcessHeap(), 0, DEF_PRINT_BUFSIZE);
if (!szBuffer) {
TRACE_RELEASE_READLOCK(lpclient);
TRACE_RELEASE_READLOCK(lpserver);
if (!bFormatBufferGlobal)
HeapFree(GetProcessHeap(), 0, szFormat);
else
InterlockedExchangePointer(&g_FormatBuffer, szFormat);
return 0;
}
}
//
// default format for output is
// \n<time>:
//
if (dwFlags & TRACE_NO_STDINFO) {
hrResult = StringCbVPrintf(szBuffer, DEF_PRINT_BUFSIZE, lpszFormat, arglist);
if (FAILED(hrResult))
dwErr = HRESULT_CODE(hrResult);
}
else {
GetLocalTime(&st);
if ((dwFlags & TRACE_USE_MSEC) == 0) {
if (dwFlags & TRACE_USE_DATE) {
hrResult = StringCbPrintf(
szFormat, DEF_PRINT_BUFSIZE,
TEXT("\r\n[%03d] %02u-%02u %02u:%02u:%02u: %s"),
GetCurrentThreadId(), st.wMonth, st.wDay, st.wHour,
st.wMinute, st.wSecond,
lpszFormat
);
}
else {
hrResult = StringCbPrintf(
szFormat, DEF_PRINT_BUFSIZE,
TEXT("\r\n[%03d] %02u:%02u:%02u: %s") ,
GetCurrentThreadId(), st.wHour, st.wMinute, st.wSecond,
lpszFormat
);
}
}
else {
if (dwFlags & TRACE_USE_DATE) {
hrResult = StringCbPrintf(
szFormat, DEF_PRINT_BUFSIZE,
TEXT("\r\n[%03d] %02u-%02u %02u:%02u:%02u:%03u: %s") ,
GetCurrentThreadId(), st.wMonth, st.wDay,
st.wHour, st.wMinute, st.wSecond,
st.wMilliseconds, lpszFormat
);
}
else {
hrResult = StringCbPrintf(
szFormat, DEF_PRINT_BUFSIZE,
TEXT("\r\n[%03d] %02u:%02u:%02u:%03u: %s") ,
GetCurrentThreadId(), st.wHour, st.wMinute, st.wSecond,
st.wMilliseconds, lpszFormat
);
}
}
if (FAILED(hrResult))
dwErr = HRESULT_CODE(hrResult);
if (dwErr == NO_ERROR)
{
hrResult = StringCbVPrintf(szBuffer, DEF_PRINT_BUFSIZE, szFormat, arglist);
if (FAILED(hrResult))
dwErr = HRESULT_CODE(hrResult);
}
}
if (dwErr == NO_ERROR)
dwSize = TraceWriteOutput(lpserver, lpclient, dwFlags, szBuffer);
TRACE_RELEASE_READLOCK(lpclient);
TRACE_RELEASE_READLOCK(lpserver);
if (bFormatBufferGlobal)
{
InterlockedExchangePointer(&g_FormatBuffer, szFormat);
}
else
{
HeapFree(GetProcessHeap(), 0, szFormat);
}
if (bPrintBufferGlobal)
{
InterlockedExchangePointer(&g_PrintBuffer, szBuffer);
}
else
{
HeapFree(GetProcessHeap(), 0, szBuffer);
}
return dwSize;
}
DWORD
APIENTRY
TracePutsEx(
IN DWORD dwTraceID,
IN DWORD dwFlags,
IN LPCTSTR lpszString
) {
SYSTEMTIME st;
DWORD dwErr=NO_ERROR, dwSize;
HRESULT hrResult=S_OK;
LPTRACE_CLIENT lpclient;
LPTRACE_SERVER lpserver;
LPCTSTR lpszOutput;
PTCHAR szBuffer;
// check for uninitialized traceregister.
if (dwTraceID == 0 || dwTraceID == INVALID_TRACEID)
{
ASSERT(TRUE);
return ERROR_INVALID_PARAMETER;
}
dwTraceID ^= CLIENT_SIGNATURE;
if (dwTraceID >= MAX_CLIENT_COUNT) {
return 0;
}
if (lpszString==NULL)
return 0;
lpserver = GET_TRACE_SERVER_NO_INIT ();
if (lpserver==NULL) // rtutils being unloaded bug.
return 0;
ASSERTMSG ("Server not initialized ", lpserver);
if (!ENTER_TRACE_API(lpserver)) { return ERROR_CAN_NOT_COMPLETE; }
CREATE_SERVER_THREAD_IF_REQUIRED();
//
// return quickly if no output will be generated;
//
if (dwFlags & TRACE_USE_MASK) {
if (!(*(lpserver->TS_FlagsCache + dwTraceID) & (dwFlags & 0xffff0000))) {
return 0;
}
}
else {
if (!*(lpserver->TS_FlagsCache + dwTraceID)) { return 0; }
}
TRACE_ACQUIRE_READLOCK(lpserver);
lpclient = lpserver->TS_ClientTable[dwTraceID];
if (lpclient == NULL) {
TRACE_RELEASE_READLOCK(lpserver);
return 0;
}
TRACE_ACQUIRE_READLOCK(lpclient);
if (TRACE_CLIENT_IS_DISABLED(lpclient)) {
TRACE_RELEASE_READLOCK(lpclient);
TRACE_RELEASE_READLOCK(lpserver);
return 0;
}
szBuffer = (PTCHAR) HeapAlloc(GetProcessHeap(), 0, DEF_PRINT_BUFSIZE);
if (!szBuffer) {
TRACE_RELEASE_READLOCK(lpclient);
TRACE_RELEASE_READLOCK(lpserver);
return ERROR_NOT_ENOUGH_MEMORY;
}
if (dwFlags & TRACE_NO_STDINFO) {
lpszOutput = lpszString;
}
else {
GetLocalTime(&st);
if ((dwFlags & TRACE_USE_MSEC) == 0) {
if (dwFlags & TRACE_USE_DATE) {
hrResult = StringCbPrintf(
szBuffer, DEF_PRINT_BUFSIZE,
TEXT("\r\n[%03d] %02u-%02u %02u:%02u:%02u: %s") ,
GetCurrentThreadId(), st.wMonth, st.wDay,
st.wHour, st.wMinute, st.wSecond,
lpszString
);
}
else {
hrResult = StringCbPrintf(
szBuffer, DEF_PRINT_BUFSIZE,
TEXT("\r\n[%03d] %02u:%02u:%02u: %s"),
GetCurrentThreadId(), st.wHour, st.wMinute, st.wSecond,
lpszString
);
}
}
else {
if (dwFlags & TRACE_USE_DATE) {
hrResult = StringCbPrintf(
szBuffer, DEF_PRINT_BUFSIZE,
TEXT("\r\n[%03d] %02u-%02u %02u:%02u:%02u:%03u: %s") ,
GetCurrentThreadId(), st.wMonth, st.wDay,
st.wHour, st.wMinute, st.wSecond,
st.wMilliseconds, lpszString
);
}
else {
hrResult = StringCbPrintf(
szBuffer, DEF_PRINT_BUFSIZE,
TEXT("\r\n[%03d] %02u:%02u:%02u:%03u: %s"),
GetCurrentThreadId(), st.wHour, st.wMinute, st.wSecond,
st.wMilliseconds, lpszString
);
}
}
lpszOutput = szBuffer;
}
if (FAILED(hrResult))
dwErr = HRESULT_CODE(hrResult);
if (dwErr == NO_ERROR)
{
dwSize = TraceWriteOutput(lpserver, lpclient, dwFlags, lpszOutput);
}
HeapFree(GetProcessHeap(), 0, szBuffer);
TRACE_RELEASE_READLOCK(lpclient);
TRACE_RELEASE_READLOCK(lpserver);
return dwErr==NO_ERROR? dwSize : 0;
}
DWORD
APIENTRY
TraceDumpEx(
IN DWORD dwTraceID,
IN DWORD dwFlags,
IN LPBYTE lpbBytes,
IN DWORD dwByteCount,
IN DWORD dwGroupSize,
IN BOOL bAddressPrefix,
IN LPCTSTR lpszPrefix
) {
SYSTEMTIME st;
DWORD dwThread;
LPTRACE_SERVER lpserver;
LPTRACE_CLIENT lpclient;
DWORD dwBytesOutput;
TCHAR szPrefix[MAX_CLIENTNAME_LENGTH + 48] = TEXT("");
BYTE szBuffer[BYTES_PER_DUMPLINE];
DWORD dwErr = NO_ERROR;
HRESULT hrResult = S_OK;
// check for uninitialized traceregister.
if (dwTraceID == 0 || dwTraceID == INVALID_TRACEID)
{
ASSERT(TRUE);
return ERROR_INVALID_PARAMETER;
}
dwTraceID ^= CLIENT_SIGNATURE;
if (dwTraceID >= MAX_CLIENT_COUNT ||
lpbBytes == NULL ||
dwByteCount == 0 ||
(dwGroupSize != 1 && dwGroupSize != 2 && dwGroupSize != 4)
) {
return ERROR_INVALID_PARAMETER;
}
lpserver = GET_TRACE_SERVER_NO_INIT ();
if (lpserver==NULL) // rtutils being unloaded bug.
return 0;
ASSERTMSG ("Server not initialized ", lpserver);
if (!ENTER_TRACE_API(lpserver)) { return ERROR_CAN_NOT_COMPLETE; }
CREATE_SERVER_THREAD_IF_REQUIRED();
//
// return quickly if no output will be generated;
//
if (dwFlags & TRACE_USE_MASK) {
if (!(*(lpserver->TS_FlagsCache + dwTraceID) & (dwFlags & 0xffff0000))) {
return 0;
}
}
else {
if (!*(lpserver->TS_FlagsCache + dwTraceID)) { return 0; }
}
TRACE_ACQUIRE_READLOCK(lpserver);
lpclient = lpserver->TS_ClientTable[dwTraceID];
if (lpclient == NULL) {
TRACE_RELEASE_READLOCK(lpserver);
return 0;
}
TRACE_ACQUIRE_READLOCK(lpclient);
if (TRACE_CLIENT_IS_DISABLED(lpclient)) {
TRACE_RELEASE_READLOCK(lpclient);
TRACE_RELEASE_READLOCK(lpserver);
return 0;
}
dwBytesOutput = 0;
if ((dwFlags & TRACE_NO_STDINFO) == 0) {
GetLocalTime(&st);
if ((dwFlags & TRACE_USE_MSEC) == 0) {
hrResult = StringCchPrintf(
szPrefix, MAX_CLIENTNAME_LENGTH + 48,
TEXT("[%03d] %02u:%02u:%02u: "),
GetCurrentThreadId(), st.wHour, st.wMinute, st.wSecond
);
}
else {
hrResult = StringCchPrintf(
szPrefix, MAX_CLIENTNAME_LENGTH + 48,
TEXT("[%03d] %02u:%02u:%02u:%03u: "),
GetCurrentThreadId(), st.wHour, st.wMinute, st.wSecond,
st.wMilliseconds
);
}
if (FAILED(hrResult))
{
TRACE_RELEASE_READLOCK(lpclient);
TRACE_RELEASE_READLOCK(lpserver);
return 0;
}
}
if (lpszPrefix != NULL) {
hrResult = StringCchCat(szPrefix, MAX_CLIENTNAME_LENGTH + 48, lpszPrefix);
if (FAILED(hrResult))
{
TRACE_RELEASE_READLOCK(lpclient);
TRACE_RELEASE_READLOCK(lpserver);
return 0;
}
}
//
// see if the start of the byte buffer is not aligned correctly
// on a DWORD boundary
//
if ((ULONG_PTR)lpbBytes & (dwGroupSize - 1)) {
DWORD dwPad;
//
// it is, so first dump the leading bytes:
// get size of misalignment, and make certain
// misalignment size isn't greater than total size
//
dwPad = (DWORD) ((ULONG_PTR)lpbBytes & (dwGroupSize - 1));
dwPad = (dwPad > dwByteCount) ? dwByteCount : dwPad;
//
// copy the misaligned bytes into the buffer
//
ZeroMemory(szBuffer, BYTES_PER_DUMPLINE);
CopyMemory(szBuffer + (BYTES_PER_DUMPLINE - dwPad), lpbBytes, dwPad);
//
// now dump the line, but give the helper function a pointer
// to the byte buffer passed in as an argument
// to print as the prefix (actually, give it the place
// in the real byte buffer that it would be dumping from
// if things weren't misaligned
//
dwBytesOutput +=
TraceDumpLine(
lpserver, lpclient, dwFlags, szBuffer, BYTES_PER_DUMPLINE, dwGroupSize,
bAddressPrefix,
(LPBYTE) ((ULONG_PTR)lpbBytes - (BYTES_PER_DUMPLINE - dwPad)), szPrefix
);
(ULONG_PTR)lpbBytes += dwPad;
dwByteCount -= dwPad;
}
//
// now loop through until we can't print out any more
//
while (dwByteCount > 0) {
//
// there is a line or more left in the buffer
// no special processing needed
//
if (dwByteCount >= BYTES_PER_DUMPLINE) {
dwBytesOutput +=
TraceDumpLine(
lpserver, lpclient, dwFlags, lpbBytes, BYTES_PER_DUMPLINE,
dwGroupSize,
bAddressPrefix, lpbBytes, szPrefix
);
lpbBytes += BYTES_PER_DUMPLINE;
dwByteCount -= BYTES_PER_DUMPLINE;
}
else {
//
// for the last line, copy the stuff to a buffer and then
// print that buffer's contents, passing the argument buffer
// as the address to use as a prefix
//
ZeroMemory(szBuffer, BYTES_PER_DUMPLINE);
CopyMemory(szBuffer, lpbBytes, dwByteCount);
dwBytesOutput +=
TraceDumpLine(
lpserver, lpclient, dwFlags, szBuffer, BYTES_PER_DUMPLINE,
dwGroupSize, bAddressPrefix, lpbBytes, szPrefix
);
lpbBytes += BYTES_PER_DUMPLINE;
dwByteCount = 0;
}
}
TRACE_RELEASE_READLOCK(lpclient);
TRACE_RELEASE_READLOCK(lpserver);
return dwBytesOutput;
}