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NT4/private/sdktools/cntrtext/common/unlodctr.c

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First commit
2001-01-01 00:00:00 +01:00
/*++
Copyright (c) 1991-1993 Microsoft Corporation
Module Name:
unlodctr.c
Abstract:
Program to remove the counter names belonging to the driver specified
in the command line and update the registry accordingly
Author:
Bob Watson (a-robw) 12 Feb 93
Revision History:
--*/
#define UNICODE 1
#define _UNICODE 1
//
// "C" Include files
//
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <malloc.h>
//
// Windows Include files
//
#include <windows.h>
#include <loadperf.h>
#include <tchar.h>
//
// local include files
//
#include "common.h"
#include "unlodctr.h"
// version number for NT 1.0
#define OLD_VERSION 0x010000
static DWORD dwSystemVersion; // PerfLib version number
static DWORD dwHelpItems; // number of explain text items
static DWORD dwCounterItems; // number of counter text items
static DWORD dwLastCounter;
static DWORD dwLastHelp;
static TCHAR ComputerName[FILE_NAME_BUFFER_SIZE];
static HKEY hPerfData; // handle to remote machine HKEY_PERFORMANCE_DATA
static BOOL bQuietMode = TRUE; // quiet means no _tprintf's
#define OUTPUT_MESSAGE if (bQuietMode) _tprintf
static
LPTSTR
*BuildNameTable(
IN HKEY hKeyPerflib, // handle to perflib key with counter names
IN LPTSTR lpszLangId, // unicode value of Language subkey
OUT PDWORD pdwLastItem, // size of array in elements
OUT HKEY *hKeyNames,
OUT LPTSTR CounterNameBuffer, // New version counter name key
OUT LPTSTR HelpNameBuffer // New version help name key
)
/*++
BuildNameTable
Caches the counter names and explain text to accelerate name lookups
for display.
Arguments:
hKeyPerflib
Handle to an open registry (this can be local or remote.) and
is the value returned by RegConnectRegistry or a default key.
lpszLangId
The unicode id of the language to look up. (default is 009)
pdwLastItem
The last array element
Return Value:
pointer to an allocated table. (the caller must free it when finished!)
the table is an array of pointers to zero terminated TEXT strings.
A NULL pointer is returned if an error occured. (error value is
available using the GetLastError function).
The structure of the buffer returned is:
Array of pointers to zero terminated strings consisting of
pdwLastItem elements
MULTI_SZ string containing counter id's and names returned from
registry for the specified language
MULTI_SZ string containing explain text id's and explain text strings
as returned by the registry for the specified language
The structures listed above are contiguous so that they may be freed
by a single "free" call when finished with them, however only the
array elements are intended to be used.
--*/
{
LPTSTR *lpReturnValue; // returned pointer to buffer
LPTSTR *lpCounterId; //
LPTSTR lpCounterNames; // pointer to Names buffer returned by reg.
LPTSTR lpHelpText ; // pointet to exlpain buffer returned by reg.
LPTSTR lpThisName; // working pointer
BOOL bStatus; // return status from TRUE/FALSE fn. calls
LONG lWin32Status; // return status from fn. calls
DWORD dwValueType; // value type of buffer returned by reg.
DWORD dwArraySize; // size of pointer array in bytes
DWORD dwBufferSize; // size of total buffer in bytes
DWORD dwCounterSize; // size of counter text buffer in bytes
DWORD dwHelpSize; // size of help text buffer in bytes
DWORD dwThisCounter; // working counter
DWORD dwLastId; // largest ID value used by explain/counter text
LPTSTR lpValueNameString; // pointer to buffer conatining subkey name
//initialize pointers to NULL
lpValueNameString = NULL;
lpReturnValue = NULL;
// check for null arguments and insert defaults if necessary
if (!lpszLangId) {
lpszLangId = DefaultLangId;
}
if (hKeyNames) {
*hKeyNames = NULL;
} else {
SetLastError (ERROR_BAD_ARGUMENTS);
return NULL;
}
// use the greater of Help items or Counter Items to size array
if (dwHelpItems >= dwCounterItems) {
dwLastId = dwHelpItems;
} else {
dwLastId = dwCounterItems;
}
// array size is # of elements (+ 1, since names are "1" based)
// times the size of a pointer
dwArraySize = (dwLastId + 1) * sizeof(LPTSTR);
// allocate string buffer for language ID key string
lpValueNameString = malloc (
lstrlen(NamesKey) * sizeof (TCHAR) +
lstrlen(Slash) * sizeof (TCHAR) +
lstrlen(lpszLangId) * sizeof (TCHAR) +
sizeof (TCHAR));
if (!lpValueNameString) {
lWin32Status = ERROR_OUTOFMEMORY;
goto BNT_BAILOUT;
}
if (dwSystemVersion == OLD_VERSION) {
lWin32Status = RegOpenKeyEx ( // get handle to this key in the
hKeyPerflib, // registry
lpszLangId,
RESERVED,
KEY_READ | KEY_WRITE,
hKeyNames);
} else {
// *hKeyNames = HKEY_PERFORMANCE_DATA;
*hKeyNames = hPerfData;
lstrcpy (CounterNameBuffer, CounterNameStr);
lstrcat (CounterNameBuffer, lpszLangId);
lstrcpy (HelpNameBuffer, HelpNameStr);
lstrcat (HelpNameBuffer, lpszLangId);
lWin32Status = ERROR_SUCCESS;
}
if (lWin32Status != ERROR_SUCCESS) goto BNT_BAILOUT;
// get size of counter names
dwBufferSize = 0;
lWin32Status = RegQueryValueEx (
*hKeyNames,
dwSystemVersion == OLD_VERSION ? Counters : CounterNameBuffer,
RESERVED,
&dwValueType,
NULL,
&dwBufferSize);
if (lWin32Status != ERROR_SUCCESS) goto BNT_BAILOUT;
dwCounterSize = dwBufferSize;
// get size of help text
dwBufferSize = 0;
lWin32Status = RegQueryValueEx (
*hKeyNames,
dwSystemVersion == OLD_VERSION ? Help : HelpNameBuffer,
RESERVED,
&dwValueType,
NULL,
&dwBufferSize);
if (lWin32Status != ERROR_SUCCESS) goto BNT_BAILOUT;
dwHelpSize = dwBufferSize;
// allocate buffer with room for pointer array, counter name
// strings and help name strings
lpReturnValue = malloc (dwArraySize + dwCounterSize + dwHelpSize);
if (!lpReturnValue) {
lWin32Status = ERROR_OUTOFMEMORY;
goto BNT_BAILOUT;
}
// initialize buffer
memset (lpReturnValue, 0, _msize(lpReturnValue));
// initialize pointers into buffer
lpCounterId = lpReturnValue;
lpCounterNames = (LPTSTR)((LPBYTE)lpCounterId + dwArraySize);
lpHelpText = (LPTSTR)((LPBYTE)lpCounterNames + dwCounterSize);
// read counter names into buffer. Counter names will be stored as
// a MULTI_SZ string in the format of "###" "Name"
dwBufferSize = dwCounterSize;
lWin32Status = RegQueryValueEx (
*hKeyNames,
dwSystemVersion == OLD_VERSION ? Counters : CounterNameBuffer,
RESERVED,
&dwValueType,
(LPVOID)lpCounterNames,
&dwBufferSize);
if (lWin32Status != ERROR_SUCCESS) goto BNT_BAILOUT;
// read explain text into buffer. Counter names will be stored as
// a MULTI_SZ string in the format of "###" "Text..."
dwBufferSize = dwHelpSize;
lWin32Status = RegQueryValueEx (
*hKeyNames,
dwSystemVersion == OLD_VERSION ? Help : HelpNameBuffer,
RESERVED,
&dwValueType,
(LPVOID)lpHelpText,
&dwBufferSize);
if (lWin32Status != ERROR_SUCCESS) goto BNT_BAILOUT;
// load counter array items, by locating each text string
// in the returned buffer and loading the
// address of it in the corresponding pointer array element.
for (lpThisName = lpCounterNames;
*lpThisName;
lpThisName += (lstrlen(lpThisName)+1) ) {
// first string should be an integer (in decimal digit characters)
// so translate to an integer for use in array element identification
bStatus = StringToInt (lpThisName, &dwThisCounter);
if (!bStatus) {
// error is in GetLastError
goto BNT_BAILOUT; // bad entry
}
// point to corresponding counter name which follows the id number
// string.
lpThisName += (lstrlen(lpThisName)+1);
// and load array element with pointer to string
lpCounterId[dwThisCounter] = lpThisName;
}
// repeat the above for the explain text strings
for (lpThisName = lpHelpText;
*lpThisName;
lpThisName += (lstrlen(lpThisName)+1) ) {
// first string should be an integer (in decimal unicode digits)
bStatus = StringToInt (lpThisName, &dwThisCounter);
if (!bStatus) {
// error is in GetLastError
goto BNT_BAILOUT; // bad entry
}
// point to corresponding counter name
lpThisName += (lstrlen(lpThisName)+1);
// and load array element;
lpCounterId[dwThisCounter] = lpThisName;
}
// if the last item arugment was used, then load the last ID value in it
if (pdwLastItem) *pdwLastItem = dwLastId;
// free the temporary buffer used
if (lpValueNameString) {
free ((LPVOID)lpValueNameString);
}
// exit returning the pointer to the buffer
return lpReturnValue;
BNT_BAILOUT:
if (lWin32Status != ERROR_SUCCESS) {
// if lWin32Status has error, then set last error value to it,
// otherwise assume that last error already has value in it
SetLastError (lWin32Status);
}
// free buffers used by this routine
if (lpValueNameString) {
free ((LPVOID)lpValueNameString);
}
if (lpReturnValue) {
free ((LPVOID)lpReturnValue);
}
return NULL;
} // BuildNameTable
static
BOOL
GetDriverFromCommandLine (
LPTSTR lpCommandLine,
HKEY *hKeyMachine,
LPTSTR lpDriverName,
HKEY *hDriverPerf
)
/*++
GetDriverFromCommandLine
locates the first argument in the command line string (after the
image name) and checks to see if
a) it's there
b) it's the name of a device driver listed in the
Registry\Machine\System\CurrentControlSet\Services key
in the registry and it has a "Performance" subkey
c) that the "First Counter" value under the Performance subkey
is defined.
if all these criteria are true, then the routine returns TRUE and
passes the pointer to the driver name back in the argument. If any
one of them fail, then NULL is returned in the DriverName arg and
the routine returns FALSE
Arguments
lpDriverName
the address of a LPTSTR to recive the pointer to the driver name
hDriverPerf
the key to the driver's performance subkey
Return Value
TRUE if a valid driver was found in the command line
FALSE if not (see above)
--*/
{
LPTSTR lpDriverKey; // buffer to build driver key name in
LONG lStatus;
DWORD dwFirstCounter;
DWORD dwSize;
DWORD dwType;
TCHAR LocalComputerName[FILE_NAME_BUFFER_SIZE];
TCHAR ExeName[FILE_NAME_BUFFER_SIZE];
DWORD NameBuffer;
INT iNumArgs;
BOOL bComputerName = FALSE;
if (!lpDriverName || !hDriverPerf) {
SetLastError (ERROR_BAD_ARGUMENTS);
return FALSE;
}
*hDriverPerf = NULL;
// an argument was found so see if it's a driver
lpDriverKey = malloc (MAX_PATH * sizeof (TCHAR));
if (!lpDriverKey) {
SetLastError (ERROR_OUTOFMEMORY);
return FALSE;
}
lstrcpy (lpDriverName, GetItemFromString (lpCommandLine, 3, TEXT(' ')));
lstrcpy (ComputerName, GetItemFromString (lpCommandLine, 2, TEXT(' ')));
// check for usage
if (ComputerName[1] == TEXT('?')) {
if (!bQuietMode) {
DisplayCommandHelp (UC_FIRST_CMD_HELP, UC_LAST_CMD_HELP);
}
SetLastError (ERROR_SUCCESS);
return FALSE;
}
// no /? so process args read
if (lstrlen(lpDriverName) == 0) {
// then no computer name is specifed so assume the local computer
// and the driver name is listed in the computer name param
if (lstrlen(ComputerName) == 0) {
iNumArgs = 1; // command line only
} else {
lstrcpy (lpDriverName, ComputerName);
ComputerName[0] = 0;
ComputerName[1] = 0;
iNumArgs = 2;
}
} else {
if (lstrlen(ComputerName) == 0) {
// this case is impossible since the driver name is after the computer name
iNumArgs = 1;
} else {
iNumArgs = 3;
}
}
// check if there is any computer name
if (ComputerName[0] == TEXT('\\') &&
ComputerName[1] == TEXT('\\')) {
// see if the specified computer is THIS computer and remove
// name if it is
NameBuffer = sizeof (LocalComputerName) / sizeof (TCHAR);
GetComputerName(LocalComputerName, &NameBuffer);
if (!lstrcmpi(LocalComputerName, &ComputerName[2])) {
// same name as local computer name
ComputerName[0] = TEXT('\0');
}
bComputerName = TRUE;
} else {
// this is a driver name
ComputerName[0] = TEXT('\0');
}
if (iNumArgs >= 2) {
if (ComputerName[0]) {
lStatus = !ERROR_SUCCESS;
try {
lStatus = RegConnectRegistry (
(LPTSTR)ComputerName,
HKEY_LOCAL_MACHINE,
hKeyMachine);
} finally {
if (lStatus != ERROR_SUCCESS) {
SetLastError (lStatus);
*hKeyMachine = NULL;
OUTPUT_MESSAGE (GetFormatResource(UC_CONNECT_PROBLEM),
ComputerName, lStatus);
return FALSE;
}
}
} else {
*hKeyMachine = HKEY_LOCAL_MACHINE;
}
lstrcpy (lpDriverKey, DriverPathRoot);
lstrcat (lpDriverKey, Slash);
lstrcat (lpDriverKey, lpDriverName);
lstrcat (lpDriverKey, Slash);
lstrcat (lpDriverKey, Performance);
lStatus = RegOpenKeyEx (
*hKeyMachine,
lpDriverKey,
RESERVED,
KEY_READ | KEY_WRITE,
hDriverPerf);
if (lStatus == ERROR_SUCCESS) {
//
// this driver has a performance section so see if its
// counters are installed by checking the First Counter
// value key for a valid return. If it returns a value
// then chances are, it has some counters installed, if
// not, then display a message and quit.
//
free (lpDriverKey); // don't need this any more
dwType = 0;
dwSize = sizeof (dwFirstCounter);
lStatus = RegQueryValueEx (
*hDriverPerf,
FirstCounter,
RESERVED,
&dwType,
(LPBYTE)&dwFirstCounter,
&dwSize);
if (lStatus == ERROR_SUCCESS) {
// counter names are installed so return success
SetLastError (ERROR_SUCCESS);
return TRUE;
} else {
// counter names are probably not installed so return FALSE
OUTPUT_MESSAGE (GetFormatResource (UC_NOTINSTALLED), lpDriverName);
*lpDriverName = TEXT('\0'); // remove driver name
SetLastError (ERROR_BADKEY);
return FALSE;
}
} else { // key not found
OUTPUT_MESSAGE (GetFormatResource (UC_DRIVERNOTFOUND),
lpDriverKey, lStatus);
SetLastError (lStatus);
free (lpDriverKey);
return FALSE;
}
} else {
if (!bQuietMode) {
DisplayCommandHelp (UC_FIRST_CMD_HELP, UC_LAST_CMD_HELP);
}
SetLastError (ERROR_INVALID_PARAMETER);
return FALSE;
}
}
static
LONG
FixNames (
HANDLE hKeyLang,
LPTSTR *lpOldNameTable,
IN LPTSTR lpszLangId, // unicode value of Language subkey
DWORD dwLastItem,
DWORD dwFirstNameToRemove,
DWORD dwLastNameToRemove
)
{
LONG lStatus;
LPTSTR lpNameBuffer = NULL;
LPTSTR lpHelpBuffer = NULL;
DWORD dwTextIndex, dwSize, dwValueType;
LPTSTR lpNextHelpText;
LPTSTR lpNextNameText;
TCHAR AddHelpNameBuffer[40];
TCHAR AddCounterNameBuffer[40];
// allocate space for the array of new text it will point
// into the text buffer returned in the lpOldNameTable buffer)
lpNameBuffer = malloc (_msize(lpOldNameTable));
lpHelpBuffer = malloc (_msize(lpOldNameTable));
if (!lpNameBuffer || !lpHelpBuffer) {
lStatus = ERROR_OUTOFMEMORY;
return lStatus;
}
// remove this driver's counters from array
for (dwTextIndex = dwFirstNameToRemove;
dwTextIndex <= dwLastNameToRemove;
dwTextIndex++) {
if (dwTextIndex > dwLastItem)
break;
lpOldNameTable[dwTextIndex] = NULL;
}
lpNextHelpText = lpHelpBuffer;
lpNextNameText = lpNameBuffer;
// build new Multi_SZ strings from New Table
for (dwTextIndex = 0; dwTextIndex <= dwLastItem; dwTextIndex++){
if (lpOldNameTable[dwTextIndex]) {
// if there's a text string at that index, then ...
if ((dwTextIndex & 0x1) && dwTextIndex != 1) { // ODD number == Help Text
lpNextHelpText +=
_stprintf (lpNextHelpText, TEXT("%d"), dwTextIndex) + 1;
lpNextHelpText +=
_stprintf (lpNextHelpText, TEXT("%s"),
lpOldNameTable[dwTextIndex]) + 1;
if (dwTextIndex > dwLastHelp){
dwLastHelp = dwTextIndex;
}
} else { // EVEN number == counter name text
lpNextNameText +=
_stprintf (lpNextNameText, TEXT("%d"), dwTextIndex) + 1;
lpNextNameText +=
_stprintf (lpNextNameText, TEXT("%s"),
lpOldNameTable[dwTextIndex]) + 1;
if (dwTextIndex > dwLastCounter){
dwLastCounter = dwTextIndex;
}
}
}
} // for dwTextIndex
// add MULTI_SZ terminating NULL
*lpNextNameText++ = TEXT ('\0');
*lpNextHelpText++ = TEXT ('\0');
// update counter name text buffer
dwSize = (DWORD)((LPBYTE)lpNextNameText - (LPBYTE)lpNameBuffer);
if (dwSystemVersion == OLD_VERSION) {
lStatus = RegSetValueEx (
hKeyLang,
Counters,
RESERVED,
REG_MULTI_SZ,
(LPBYTE)lpNameBuffer,
dwSize);
} else {
lstrcpy (AddCounterNameBuffer, AddCounterNameStr);
lstrcat (AddCounterNameBuffer, lpszLangId);
lStatus = RegQueryValueEx (
hKeyLang,
AddCounterNameBuffer,
RESERVED,
&dwValueType,
(LPBYTE)lpNameBuffer,
&dwSize);
}
if (lStatus != ERROR_SUCCESS) {
// OUTPUT_MESSAGE (GetFormatResource(UC_UNABLELOADLANG),
// Counters, lpLangName, lStatus);
goto UCN_FinishLang;
}
dwSize = (DWORD)((LPBYTE)lpNextHelpText - (LPBYTE)lpHelpBuffer);
if (dwSystemVersion == OLD_VERSION) {
lStatus = RegSetValueEx (
hKeyLang,
Help,
RESERVED,
REG_MULTI_SZ,
(LPBYTE)lpHelpBuffer,
dwSize);
} else {
lstrcpy (AddHelpNameBuffer, AddHelpNameStr);
lstrcat (AddHelpNameBuffer, lpszLangId);
lStatus = RegQueryValueEx (
hKeyLang,
AddHelpNameBuffer,
RESERVED,
&dwValueType,
(LPBYTE)lpHelpBuffer,
&dwSize);
}
if (lStatus != ERROR_SUCCESS) {
// OUTPUT_MESSAGE (GetFormatResource(UC_UNABLELOADLANG),
// Help, lpLangName, lStatus);
goto UCN_FinishLang;
}
UCN_FinishLang:
free (lpNameBuffer);
free (lpHelpBuffer);
free (lpOldNameTable);
if (dwSystemVersion == OLD_VERSION) {
RegCloseKey (hKeyLang);
}
return lStatus;
}
static
LONG
UnloadCounterNames (
HKEY hKeyMachine,
HKEY hDriverPerf,
LPTSTR lpDriverName
)
/*++
UnloadCounterNames
removes the names and explain text for the driver referenced by
hDriverPerf and updates the first and last counter values accordingly
update process:
- set "updating" flag under Perflib to name of driver being modified
- FOR each language under perflib key
-- load current counter names and explain text into array of
pointers
-- look at all drivers and copy their names and text into a new
buffer adjusting for the removed counter's entries keeping
track of the lowest entry copied. (the names for the driver
to be removed will not be copied, of course)
-- update each driver's "first" and "last" index values
-- copy all other entries from 0 to the lowest copied (i.e. the
system counters)
-- build a new MULIT_SZ string of help text and counter names
-- load new strings into registry
- update perflibl "last" counters
- delete updating flag
******************************************************
* *
* NOTE: FUNDAMENTAL ASSUMPTION..... *
* *
* this routine assumes that: *
* *
* ALL COUNTER NAMES are even numbered and *
* ALL HELP TEXT STRINGS are odd numbered *
* *
******************************************************
Arguments
hKeyMachine
handle to HKEY_LOCAL_MACHINE node of registry on system to
remove counters from
hDrivefPerf
handle to registry key of driver to be de-installed
lpDriverName
name of driver being de-installed
Return Value
DOS Error code.
ERROR_SUCCESS if all went OK
error value if not.
--*/
{
HKEY hPerflib;
HKEY hServices;
HKEY hKeyLang;
LONG lStatus;
DWORD dwLangIndex;
DWORD dwSize;
DWORD dwType;
DWORD dwLastItem;
DWORD dwRemLastDriverCounter;
DWORD dwRemFirstDriverCounter;
DWORD dwRemLastDriverHelp;
DWORD dwRemFirstDriverHelp;
DWORD dwFirstNameToRemove;
DWORD dwLastNameToRemove;
LPTSTR *lpOldNameTable;
LPTSTR lpLangName = NULL;
LPTSTR lpThisDriver = NULL;
BOOL bPerflibUpdated = FALSE;
BOOL bDriversShuffled = FALSE;
DWORD dwBufferSize; // size of total buffer in bytes
TCHAR CounterNameBuffer [40];
TCHAR HelpNameBuffer [40];
HANDLE hFileMapping = NULL;
DWORD MapFileSize;
SECURITY_ATTRIBUTES SecAttr;
TCHAR MapFileName[] = TEXT("Perflib Busy");
DWORD *lpData;
lStatus = RegOpenKeyEx (
hKeyMachine,
DriverPathRoot,
RESERVED,
KEY_READ | KEY_WRITE,
&hServices);
if (lStatus != ERROR_SUCCESS) {
OUTPUT_MESSAGE (GetFormatResource(UC_UNABLEOPENKEY),
DriverPathRoot, lStatus);
return lStatus;
}
// open registry handle to perflib key
lStatus = RegOpenKeyEx (
hKeyMachine,
NamesKey,
RESERVED,
KEY_READ | KEY_WRITE,
&hPerflib);
if (lStatus != ERROR_SUCCESS) {
OUTPUT_MESSAGE (GetFormatResource(UC_UNABLEOPENKEY),
NamesKey, lStatus);
return lStatus;
}
#if 0
// check & set Busy flag...
lStatus = RegQueryValueEx (
hPerflib,
Busy,
RESERVED,
&dwType,
NULL,
&dwSize);
if (lStatus == ERROR_SUCCESS) { // perflib is in use at the moment
OUTPUT_MESSAGE (GetFormatResource (UC_PERFLIBISBUSY));
return ERROR_BUSY;
}
#endif
lStatus = RegSetValueEx (
hPerflib,
Busy,
RESERVED,
REG_SZ,
(LPBYTE)lpDriverName,
lstrlen(lpDriverName) * sizeof(TCHAR));
if (lStatus != ERROR_SUCCESS) {
OUTPUT_MESSAGE (GetFormatResource(UC_UNABLESETVALUE),
Busy, NamesKey, lStatus);
RegCloseKey (hPerflib);
return lStatus;
}
// query registry to get number of Explain text items
dwBufferSize = sizeof (dwHelpItems);
lStatus = RegQueryValueEx (
hPerflib,
LastHelp,
RESERVED,
&dwType,
(LPBYTE)&dwHelpItems,
&dwBufferSize);
if ((lStatus != ERROR_SUCCESS) || (dwType != REG_DWORD)) {
RegCloseKey (hPerflib);
return lStatus;
}
// query registry to get number of counter and object name items
dwBufferSize = sizeof (dwCounterItems);
lStatus = RegQueryValueEx (
hPerflib,
LastCounter,
RESERVED,
&dwType,
(LPBYTE)&dwCounterItems,
&dwBufferSize);
if ((lStatus != ERROR_SUCCESS) || (dwType != REG_DWORD)) {
RegCloseKey (hPerflib);
return lStatus;
}
// query registry to get PerfLib system version
dwBufferSize = sizeof (dwSystemVersion);
lStatus = RegQueryValueEx (
hPerflib,
VersionStr,
RESERVED,
&dwType,
(LPBYTE)&dwSystemVersion,
&dwBufferSize);
if ((lStatus != ERROR_SUCCESS) || (dwType != REG_DWORD)) {
// Key not there, must be NT 1.0 version
dwSystemVersion = OLD_VERSION;
}
// set the hPerfData to HKEY_PERFORMANCE_DATA for new version
// if remote machine, then need to connect to it.
if (dwSystemVersion != OLD_VERSION) {
lStatus = !ERROR_SUCCESS;
hPerfData = HKEY_PERFORMANCE_DATA;
if (ComputerName[0]) {
#if 0
// the following is not working for remote machine since we
// are using RegQueryValue to add the counter.
// Need to fix up Perflib before it will work
try {
lStatus = RegConnectRegistry (
(LPTSTR)ComputerName,
HKEY_PERFORMANCE_DATA,
&hPerfData);
} finally {
if (lStatus != ERROR_SUCCESS) {
SetLastError (lStatus);
hPerfData = NULL;
OUTPUT_MESSAGE (GetFormatResource(UC_CONNECT_PROBLEM),
ComputerName, lStatus);
goto UCN_ExitPoint;
}
}
#else
// have to do it the old faction way
dwSystemVersion = OLD_VERSION;
lStatus = ERROR_SUCCESS;
#endif
}
} // NEW_VERSION
// allocate temporary String buffer
lpLangName = malloc (MAX_PATH * sizeof(TCHAR));
lpThisDriver = malloc (MAX_PATH * sizeof(TCHAR));
if (!lpLangName || !lpThisDriver) {
lStatus = ERROR_OUTOFMEMORY;
goto UCN_ExitPoint;
}
// Get the values that are in use by the driver to be removed
dwSize = sizeof (dwRemLastDriverCounter);
lStatus = RegQueryValueEx (
hDriverPerf,
LastCounter,
RESERVED,
&dwType,
(LPBYTE)&dwRemLastDriverCounter,
&dwSize);
if (lStatus != ERROR_SUCCESS) {
OUTPUT_MESSAGE (GetFormatResource (UC_UNABLEREADVALUE),
lpDriverName, LastCounter, lStatus);
goto UCN_ExitPoint;
}
dwSize = sizeof (dwRemFirstDriverCounter);
lStatus = RegQueryValueEx (
hDriverPerf,
FirstCounter,
RESERVED,
&dwType,
(LPBYTE)&dwRemFirstDriverCounter,
&dwSize);
if (lStatus != ERROR_SUCCESS) {
OUTPUT_MESSAGE (GetFormatResource (UC_UNABLEREADVALUE),
lpDriverName, FirstCounter, lStatus);
goto UCN_ExitPoint;
}
dwSize = sizeof (dwRemLastDriverHelp);
lStatus = RegQueryValueEx (
hDriverPerf,
LastHelp,
RESERVED,
&dwType,
(LPBYTE)&dwRemLastDriverHelp,
&dwSize);
if (lStatus != ERROR_SUCCESS) {
OUTPUT_MESSAGE (GetFormatResource (UC_UNABLEREADVALUE),
lpDriverName, LastHelp, lStatus);
goto UCN_ExitPoint;
}
dwSize = sizeof (dwRemFirstDriverHelp);
lStatus = RegQueryValueEx (
hDriverPerf,
FirstHelp,
RESERVED,
&dwType,
(LPBYTE)&dwRemFirstDriverHelp,
&dwSize);
if (lStatus != ERROR_SUCCESS) {
OUTPUT_MESSAGE (GetFormatResource (UC_UNABLEREADVALUE),
lpDriverName, FirstHelp, lStatus);
goto UCN_ExitPoint;
}
// get the first and last counters to define block of names used
// by this device
dwFirstNameToRemove = (dwRemFirstDriverCounter <= dwRemFirstDriverHelp ?
dwRemFirstDriverCounter : dwRemFirstDriverHelp);
dwLastNameToRemove = (dwRemLastDriverCounter >= dwRemLastDriverHelp ?
dwRemLastDriverCounter : dwRemLastDriverHelp);
dwLastCounter = dwLastHelp = 0;
// create the file mapping
SecAttr.nLength = sizeof (SecAttr);
SecAttr.bInheritHandle = TRUE;
SecAttr.lpSecurityDescriptor = NULL;
MapFileSize = sizeof(DWORD);
hFileMapping = CreateFileMapping ((HANDLE)0xFFFFFFFF, &SecAttr,
PAGE_READWRITE, (DWORD)0, MapFileSize, (LPCTSTR)MapFileName);
if (hFileMapping) {
lpData = MapViewOfFile (hFileMapping,
FILE_MAP_ALL_ACCESS, 0L, 0L, 0L);
if (lpData) {
*lpData = 1L;
UnmapViewOfFile (lpData);
}
}
// do each language under perflib
if (dwSystemVersion == OLD_VERSION) {
for (dwLangIndex = 0, dwSize = _msize(lpLangName);
(RegEnumKey(hPerflib, dwLangIndex, lpLangName, dwSize)) == ERROR_SUCCESS;
dwLangIndex++, dwSize = _msize(lpLangName)) {
OUTPUT_MESSAGE (GetFormatResource (UC_DOINGLANG), lpLangName);
lpOldNameTable = BuildNameTable (hPerflib, lpLangName,
&dwLastItem, &hKeyLang, CounterNameBuffer, HelpNameBuffer);
if (lpOldNameTable) {
if (!FixNames (
hKeyLang,
lpOldNameTable,
lpLangName,
dwLastItem,
dwFirstNameToRemove,
dwLastNameToRemove)) {
bPerflibUpdated = TRUE;
}
} else { // unable to unload names for this language
// display error message
}
} // end for (more languages)
} // end of OLD_VERSION
else {
CHAR *pSystemRoot;
WIN32_FIND_DATA FindFileInfo ;
HANDLE hFindFile ;
CHAR FileName[128];
WCHAR wFileName[128];
WCHAR LangId[10];
WCHAR *pLangId;
pSystemRoot = getenv ("SystemRoot");
strcpy(FileName, pSystemRoot);
strcat(FileName, "\\system32\\perfc???.dat");
mbstowcs(wFileName, FileName, strlen(FileName) + 1);
hFindFile = FindFirstFile ((LPCTSTR)wFileName, &FindFileInfo) ;
if (!hFindFile || hFindFile == INVALID_HANDLE_VALUE) {
OUTPUT_MESSAGE(TEXT("FindFirstFile Failed, Error = %ld\n"), GetLastError());
} else {
do {
// get langid
pLangId = FindFileInfo.cFileName;
while (*pLangId != L'\0') {
if (*pLangId >= L'0' && *pLangId <= L'9')
break;
pLangId++;
}
if (*pLangId == L'\0')
break;
LangId[0] = *pLangId++;
LangId[1] = *pLangId++;
LangId[2] = *pLangId++;
LangId[3] = L'\0';
OUTPUT_MESSAGE (GetFormatResource (UC_DOINGLANG), LangId);
lpOldNameTable = BuildNameTable (hPerflib, LangId,
&dwLastItem, &hKeyLang, CounterNameBuffer, HelpNameBuffer);
if (lpOldNameTable) {
if (!FixNames (
hKeyLang,
lpOldNameTable,
LangId,
dwLastItem,
dwFirstNameToRemove,
dwLastNameToRemove)) {
bPerflibUpdated = TRUE;
}
} else { // unable to unload names for this language
// display error message
}
} while (FindNextFile(hFindFile, &FindFileInfo));
}
FindClose (hFindFile);
} // end of NEW_VERSION
if (bPerflibUpdated) {
// update perflib's "last" values
dwSize = sizeof (dwLastCounter);
lStatus = RegSetValueEx (
hPerflib,
LastCounter,
RESERVED,
REG_DWORD,
(LPBYTE)&dwLastCounter,
dwSize);
dwSize = sizeof (dwLastHelp);
lStatus = RegSetValueEx (
hPerflib,
LastHelp,
RESERVED,
REG_DWORD,
(LPBYTE)&dwLastHelp,
dwSize);
// update "driver"s values (i.e. remove them)
RegDeleteValue (hDriverPerf, FirstCounter);
RegDeleteValue (hDriverPerf, LastCounter);
RegDeleteValue (hDriverPerf, FirstHelp);
RegDeleteValue (hDriverPerf, LastHelp);
}
UCN_ExitPoint:
RegDeleteValue (hPerflib, Busy);
RegCloseKey (hPerflib);
RegCloseKey (hServices);
if (lpLangName) free (lpLangName);
if (lpThisDriver) free (lpThisDriver);
// if (dwSystemVersion != OLD_VERSION) {
// RegCloseKey (HKEY_PERFORMANCE_DATA) ;
// }
if (hFileMapping) {
CloseHandle (hFileMapping);
}
return lStatus;
}
LOADPERF_FUNCTION
UnloadPerfCounterTextStringsW (
IN LPWSTR lpCommandLine,
IN BOOL bQuietModeArg
)
/*++
UnloadPerfCounterTextStringsW
entry point to Counter Name Unloader
Arguments
command line string in the format:
"/?" displays the usage help
"driver" driver containing the performance counters
"\\machine driver" removes the counters from the driver on \\machine
ReturnValue
0 (ERROR_SUCCESS) if command was processed
Non-Zero if command error was detected.
--*/
{
LPTSTR lpDriverName=NULL; // name of driver to delete from perflib
HKEY hDriverPerf=NULL; // handle to performance sub-key of driver
HKEY hMachineKey=NULL; // handle to remote machine HKEY_LOCAL_MACHINE
DWORD dwStatus; // return status of fn. calls
lpDriverName = (LPTSTR)malloc(MAX_PATH * sizeof(TCHAR));
bQuietMode = bQuietModeArg;
if (lpDriverName != NULL) {
if (!GetDriverFromCommandLine (
lpCommandLine, &hMachineKey, lpDriverName, &hDriverPerf)) {
// error message was printed in routine if there was an error
dwStatus = GetLastError();
goto Exit0;
}
} else {
dwStatus = ERROR_OUTOFMEMORY;
goto Exit0;
}
OUTPUT_MESSAGE (GetFormatResource(UC_REMOVINGDRIVER), lpDriverName);
// removes names and explain text for driver in lpDriverName
// displays error messages for errors encountered
dwStatus = (DWORD)UnloadCounterNames (hMachineKey,
hDriverPerf, lpDriverName);
Exit0:
if (lpDriverName != NULL) free (lpDriverName);
if (hDriverPerf)
RegCloseKey (hDriverPerf);
if (hMachineKey != HKEY_LOCAL_MACHINE && hMachineKey != NULL) {
RegCloseKey (hMachineKey);
}
if (hPerfData != HKEY_PERFORMANCE_DATA && hPerfData != NULL) {
RegCloseKey (hPerfData);
}
return dwStatus;
}
LOADPERF_FUNCTION
UnloadPerfCounterTextStringsA (
IN LPSTR lpAnsiCommandLine,
IN BOOL bQuietModeArg
)
{
LPWSTR lpWideCommandLine;
DWORD dwStrLen;
LONG lReturn;
if (lpAnsiCommandLine != 0) { // to catch bogus parameters
//length of string including terminator
dwStrLen = lstrlenA(lpAnsiCommandLine) + 1;
lpWideCommandLine = GlobalAlloc (GPTR, (dwStrLen * sizeof(WCHAR)));
if (lpWideCommandLine != NULL) {
mbstowcs (lpWideCommandLine, lpAnsiCommandLine, dwStrLen);
lReturn = UnloadPerfCounterTextStringsW (lpWideCommandLine,
bQuietModeArg );
GlobalFree (lpWideCommandLine);
} else {
lReturn = GetLastError();
}
} else {
lReturn = ERROR_INVALID_PARAMETER;
}
return lReturn;
}
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