Leaked source code of windows server 2003
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//+---------------------------------------------------------------------------
// Copyright (C) 1991-1994, Microsoft Corporation.
//
// File: assert.cpp
//
// Contents: Debugging output routines
//
// History: 23-Jul-91 KyleP Created.
// 09-Oct-91 KevinRo Major changes and comments added
// 18-Oct-91 vich moved debug print routines out
// 10-Jun-92 BryanT Switched to w4crt.h instead of wchar.h
// 7-Oct-94 BruceFo Ripped out all kernel, non-FLAT,
// DLL-specific, non-Win32 functionality.
// Now it's basically "print to the
// debugger" code.
// 20-Oct-95 EricB Set component debug level in the
// registry.
//
//----------------------------------------------------------------------------
#include <objbase.h>
#include <basetyps.h>
#include <tchar.h>
#include <shlwapi.h> // wvnsprintf
#if DBG==1
#define new DEBUG_NEW
#include "admindbg.h"
#include "malloc.h" // alloca
#include "stddbg.h" // VERIFY
#include "macros.h" // ARRAYLEN
#include "strsafe.h" // StringCchPrintf
//
// Globals
//
ULONG AdminAssertLevel = ASSRT_MESSAGE | ASSRT_BREAK | ASSRT_POPUP;
//
// Forward declaration of local functions
//
LPSTR AnsiPathFindFileName(LPSTR pPath);
void smprintf(ULONG ulCompMask, LPTSTR pszComp, LPTSTR ppszfmt, va_list pargs);
int w4dprintf(LPTSTR format, ...);
int w4smprintf(LPTSTR format, va_list arglist);
//+---------------------------------------------------------------------------
//
// Function: w4dprintf
//
// Synopsis: Calls w4smprintf to output a formatted message.
//
//----------------------------------------------------------------------------
int w4dprintf(LPTSTR format, ...)
{
int ret;
va_list va;
va_start(va, format);
ret = w4smprintf(format, va);
va_end(va);
return ret;
}
//+---------------------------------------------------------------------------
//
// Function: w4smprintf
//
// Synopsis: Calls OutputDebugStringA to output a formatted message.
//
//----------------------------------------------------------------------------
int w4smprintf(LPTSTR format, va_list arglist)
{
TCHAR szMessageBuf[500]; // this is the message buffer
int ret;
ret = wvnsprintf(szMessageBuf, 500, format, arglist);
OutputDebugString(szMessageBuf);
return ret;
}
//+------------------------------------------------------------
// Function: smprintf
//
// Synopsis: Prints debug output using a pointer to the
// variable information. Used primarily by the
// xxDebugOut macros
//
// Arguements:
// ulCompMask -- Component level mask used to determine
// output ability
// pszComp -- String const of component prefix.
// ppszfmt -- Pointer to output format and data
//
//-------------------------------------------------------------
void smprintf(ULONG ulCompMask, LPTSTR pszComp, LPTSTR ppszfmt, va_list pargs)
{
if ((ulCompMask & DEB_FORCE) == DEB_FORCE ||
(ulCompMask | (DEB_ERROR | DEB_WARN)))
{
DWORD tid = GetCurrentThreadId();
DWORD pid = GetCurrentProcessId();
if (((DEB_ERROR | DEB_WARN) & (DEB_DBGOUT | DEB_STDOUT)) != DEB_STDOUT)
{
if (! (ulCompMask & DEB_NOCOMPNAME))
{
w4dprintf(_T("%x.%03x> %s: "), pid, tid, pszComp);
}
w4smprintf(ppszfmt, pargs);
}
}
}
//+----------------------------------------------------------------------------
//
// Admin debuggging library inititalization.
//
// To set a non-default debug info level outside of the debugger, create the
// below registry key and in it create a value whose name is the component's
// debugging tag name (the "comp" parameter to the DECLARE_INFOLEVEL macro) and
// whose data is the desired infolevel in REG_DWORD format.
//-----------------------------------------------------------------------------
#define CURRENT_VERSION_KEY _T("SOFTWARE\\Microsoft\\Windows\\CurrentVersion")
#define ADMINDEBUGKEY _T("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\AdminDebug")
#define ADMINDEBUG _T("AdminDebug")
//+----------------------------------------------------------------------------
// Function: CheckInit
//
// Synopsis: Performs debugging library initialization
// including reading the registry for the desired infolevel
//
//-----------------------------------------------------------------------------
void CheckInit(LPTSTR pInfoLevelString, ULONG * pulInfoLevel)
{
HKEY hKey;
LONG lRet;
DWORD dwSize;
lRet = RegOpenKeyEx(HKEY_LOCAL_MACHINE, ADMINDEBUGKEY, 0,
KEY_ALL_ACCESS, &hKey);
if (lRet == ERROR_FILE_NOT_FOUND)
{
HKEY hkCV;
lRet = RegOpenKeyEx(HKEY_LOCAL_MACHINE, CURRENT_VERSION_KEY, 0,
KEY_ALL_ACCESS, &hkCV);
if (lRet == ERROR_SUCCESS)
{
lRet = RegCreateKeyEx(hkCV, ADMINDEBUG, 0, _T(""),
REG_OPTION_NON_VOLATILE, KEY_ALL_ACCESS, NULL, &hKey, NULL);
RegCloseKey(hkCV);
}
}
if (lRet == ERROR_SUCCESS)
{
dwSize = sizeof(ULONG);
lRet = RegQueryValueEx(hKey, pInfoLevelString, NULL, NULL,
(LPBYTE)pulInfoLevel, &dwSize);
if (lRet != ERROR_SUCCESS)
{
*pulInfoLevel = (DEB_ERROR | DEB_WARN);
lRet = RegSetValueEx(hKey, pInfoLevelString, 0, REG_DWORD,
(CONST BYTE *)pulInfoLevel, sizeof(ULONG));
}
RegCloseKey(hKey);
}
}
// Returns a pointer to the last component of a path string.
//
// in:
// path name, either fully qualified or not
//
// returns:
// pointer into the path where the path is. if none is found
// returns a poiter to the start of the path
//
// c:\foo\bar -> bar
// c:\foo -> foo
// c:\foo\ -> c:\foo\ (REVIEW: is this case busted?)
// c:\ -> c:\ (REVIEW: this case is strange)
// c: -> c:
// foo -> foo
LPSTR AnsiPathFindFileName(LPSTR pPath)
{
LPSTR pT;
for (pT = pPath; *pPath; pPath = CharNextA(pPath)) {
if ((pPath[0] == '\\' || pPath[0] == ':')
&& pPath[1] && (pPath[1] != '\\'))
pT = pPath + 1;
}
return (LPSTR)pT; // const -> non const
}
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
////////////// ASSERT CODE //////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
//+------------------------------------------------------------
// Function: PopUpError
//
// Synopsis: Displays a dialog box using provided text,
// and presents the user with the option to
// continue or cancel.
//
// Arguments:
// szMsg -- The string to display in main body of dialog
// iLine -- Line number of file in error
// szFile -- Filename of file in error
//
// Returns:
// IDCANCEL -- User selected the CANCEL button
// IDOK -- User selected the OK button
//-------------------------------------------------------------
int PopUpError(LPTSTR szMsg, int iLine, LPSTR szFile)
{
//
// Create caption
//
static TCHAR szAssertCaption[128];
//
// get process
//
static CHAR szModuleName[128];
LPSTR pszModuleName;
if (GetModuleFileNameA(NULL, szModuleName, 128))
{
pszModuleName = szModuleName;
}
else
{
pszModuleName = "Unknown";
}
LPSTR pProcess = AnsiPathFindFileName(pszModuleName);
// 591438-2002/04/05 JonN removed wsprintf
// "%hs" is short-string
VERIFY( SUCCEEDED( StringCchPrintf(szAssertCaption,
ARRAYLEN(szAssertCaption),
_T("%hs: Assertion Failed"),
pProcess) ) );
//
// Create details.
//
TCHAR szDetails[1024];
DWORD tid = GetCurrentThreadId();
DWORD pid = GetCurrentProcessId();
// 591438-2002/04/05 JonN removed wsprintf
VERIFY( SUCCEEDED( StringCchPrintf(
szDetails,
ARRAYLEN(szDetails),
_T(" Assertion:\t %s\n\n") \
_T(" File: \t\t %hs\n") \
_T(" Line: \t\t %d\n\n") \
_T(" Module: \t %hs\n") \
_T(" Thread ID:\t %d.%d\n"),
szMsg, szFile, iLine, pszModuleName, pid, tid) ) );
int id = MessageBox(NULL,
szDetails,
szAssertCaption,
MB_SETFOREGROUND
| MB_DEFAULT_DESKTOP_ONLY
| MB_TASKMODAL
| MB_ICONEXCLAMATION
| MB_OKCANCEL);
//
// If id == 0, then an error occurred. There are two possibilities
// that can cause the error: Access Denied, which means that this
// process does not have access to the default desktop, and everything
// else (usually out of memory).
//
if (0 == id)
{
if (GetLastError() == ERROR_ACCESS_DENIED)
{
//
// Retry this one with the SERVICE_NOTIFICATION flag on. That
// should get us to the right desktop.
//
id = MessageBox(NULL,
szMsg,
szAssertCaption,
MB_SETFOREGROUND
| MB_TASKMODAL
| MB_ICONEXCLAMATION
| MB_OKCANCEL);
}
}
return id;
}
//+---------------------------------------------------------------------------
//
// Function: _asdprintf
//
// Synopsis: Calls smprintf to output a formatted message.
//
// History: 18-Oct-91 vich Created
//
//----------------------------------------------------------------------------
inline void _asdprintf(LPTSTR pszfmt, ...)
{
va_list va;
va_start(va, pszfmt);
smprintf(DEB_FORCE, _T("Assert"), pszfmt, va);
va_end(va);
}
//+---------------------------------------------------------------------------
//
// Function: AdminAssertEx, private
//
// Synopsis: Display assertion information
//
// Effects: Called when an assertion is hit.
//
//----------------------------------------------------------------------------
void AdminAssertEx(LPSTR szFile, int iLine, LPTSTR szMessage)
{
if (AdminAssertLevel & ASSRT_MESSAGE)
{
DWORD tid = GetCurrentThreadId();
LPSTR pszFileName = AnsiPathFindFileName(szFile);
_asdprintf(_T("%s <%hs, l %u, thread %d>\n"),
szMessage, pszFileName, iLine, tid);
}
if (AdminAssertLevel & ASSRT_POPUP)
{
int id = PopUpError(szMessage,iLine,szFile);
if (id == IDCANCEL)
{
DebugBreak();
}
}
else if (AdminAssertLevel & ASSRT_BREAK)
{
DebugBreak();
}
}
//____________________________________________________________________________
//____________________________________________________________________________
//________________ _________________________________________
//________________ class CDbg _________________________________________
//________________ _________________________________________
//____________________________________________________________________________
//____________________________________________________________________________
CDbg::CDbg(LPTSTR str)
:
m_InfoLevelString(str),
m_InfoLevel(DEB_ERROR | DEB_WARN)
{
CheckInit(m_InfoLevelString, &m_InfoLevel);
}
void CDbg::Trace(LPSTR pszfmt, ...)
{
#ifdef UNICODE
size_t convert = strlen(pszfmt) + 1;
LPTSTR ptcfmt = (LPWSTR)alloca(convert * sizeof(WCHAR));
ptcfmt[0] = '\0';
(void) MultiByteToWideChar(CP_ACP, 0, pszfmt, -1, ptcfmt, (int) convert);
#else
LPTSTR ptcfmt = pszfmt;
#endif
if (m_InfoLevel & DEB_TRACE)
{
va_list va;
va_start (va, pszfmt);
smprintf(DEB_TRACE, m_InfoLevelString, ptcfmt, va);
va_end(va);
}
}
void CDbg::Trace(LPWSTR pwszfmt, ...)
{
#ifndef UNICODE
// NTRAID#NTBUG9-590026-2002/03/29 JonN I am not confident in this
// translation code, since the MBCS string will often have more
// characters than the UNICODE string. However, this code is
// restricted to non-UNICODE snapins so it isn't too relevant.
size_t convert = wcslen(pwszfmt) + 1;
LPTSTR ptcfmt = (LPSTR)alloca(convert * sizeof(CHAR));
ptcfmt[0] = '\0';
(void) WideCharToMultiByte(CP_ACP, 0, pwszfmt, -1, ptcfmt, (int) convert, NULL, NULL);
#else
LPTSTR ptcfmt = pwszfmt;
#endif
if (m_InfoLevel & DEB_TRACE)
{
va_list va;
va_start (va, pwszfmt);
smprintf(DEB_TRACE, m_InfoLevelString, ptcfmt, va);
va_end(va);
}
}
void CDbg::DebugOut(ULONG fDebugMask, LPSTR pszfmt, ...)
{
#ifdef UNICODE
size_t convert = strlen(pszfmt) + 1;
LPTSTR ptcfmt = (LPWSTR)alloca(convert * sizeof(WCHAR));
ptcfmt[0] = '\0';
(void) MultiByteToWideChar(CP_ACP, 0, pszfmt, -1, ptcfmt, (int) convert);
#else
LPTSTR ptcfmt = pszfmt;
#endif
if (m_InfoLevel & fDebugMask)
{
va_list va;
va_start (va, pszfmt);
smprintf(DEB_TRACE, m_InfoLevelString, ptcfmt, va);
va_end(va);
}
}
void CDbg::DebugOut(ULONG fDebugMask, LPWSTR pwszfmt, ...)
{
#ifndef UNICODE
int convert = wcslen(pwszfmt) + 1;
LPTSTR ptcfmt = (LPSTR)alloca(convert * sizeof(CHAR));
ptcfmt[0] = '\0';
(void) WideCharToMultiByte(CP_ACP, 0, pwszfmt, -1, ptcfmt, convert, NULL, NULL);
#else
LPTSTR ptcfmt = pwszfmt;
#endif
if (m_InfoLevel & fDebugMask)
{
va_list va;
va_start (va, pwszfmt);
smprintf(DEB_TRACE, m_InfoLevelString, ptcfmt, va);
va_end(va);
}
}
void CDbg::DebugErrorX(LPSTR file, ULONG line, LONG err)
{
if (m_InfoLevel & DEB_ERROR)
{
file = AnsiPathFindFileName(file);
this->DebugOut(DEB_ERROR, "error<0x%08x> %hs, l %u\n",
err, file, line);
}
}
void CDbg::DebugErrorL(LPSTR file, ULONG line, LONG err)
{
if (m_InfoLevel & DEB_ERROR)
{
file = AnsiPathFindFileName(file);
this->DebugOut(DEB_ERROR, "error<%uL> %hs, l %u\n", err, file, line);
}
}
void CDbg::DebugMsg(LPSTR file, ULONG line, LPSTR msg)
{
file = AnsiPathFindFileName(file);
this->DebugOut(DEB_FORCE, "asrt %hs, l %u, <%s>\n", file, line, msg);
}
void CDbg::DebugMsg(LPSTR file, ULONG line, LPWSTR msg)
{
file = AnsiPathFindFileName(file);
this->DebugOut(DEB_FORCE, _T("asrt %hs, l %u, <%s>\n"), file, line, msg);
}
void CDbg::AssertEx(LPSTR pszFile, int iLine, LPTSTR pszMsg)
{
#if 0
LPTSTR ptcMsg = NULL;
#ifdef UNICODE
int convert = strlen(pszMsg) + 1;
ptcMsg = (LPWSTR)alloca(convert * sizeof(WCHAR));
ptcMsg[0] = '\0';
(void) MultiByteToWideChar(CP_ACP, 0, pszMsg, -1, ptcMsg, convert);
#else
ptcMsg = pszMsg;
#endif
AdminAssertEx(pszFile, iLine, ptcMsg);
#endif //0
AdminAssertEx(pszFile, iLine, pszMsg);
}
#endif // DBG==1