Source code of Windows XP (NT5)
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/*++
Copyright (c) 1994-1999 Microsoft Corporation
Module Name :
utcls.cpp
Abstract:
Internet Properties base classes
Author:
Ronald Meijer (ronaldm)
Project:
Internet Services Manager
Revision History:
--*/
//
// Include Files
//
#include "stdafx.h"
#include "common.h"
#include "idlg.h"
#include "mmc.h"
extern "C"
{
#include <lm.h>
}
#ifdef _DEBUG
#undef THIS_FILE
static char BASED_CODE THIS_FILE[] = __FILE__;
#endif
#define new DEBUG_NEW
#define SZ_REG_KEY_BASE _T("Software\\Microsoft\\%s")
BOOL
IsServerLocal(
IN LPCTSTR lpszServer
)
/*++
Routine Description:
Check to see if the given name refers to the local machine
Arguments:
LPCTSTR lpszServer : Server name
Return Value:
TRUE if the given name refers to the local computer, FALSE otherwise
Note:
Doesn't work if the server is an ip address
--*/
{
TCHAR szComputerName[MAX_COMPUTERNAME_LENGTH + 1];
DWORD dwSize = sizeof(szComputerName);
//
// CODEWORK(?): we're not checking for all the ip addresses
// on the local box or full dns names.
//
// Try GetComputerNameEx when we're building with NT5
// settings.
//
return (!lstrcmpi(_T("localhost"), PURE_COMPUTER_NAME(lpszServer))
|| !lstrcmp( _T("127.0.0.1"), PURE_COMPUTER_NAME(lpszServer)))
|| (GetComputerName(szComputerName, &dwSize)
&& !lstrcmpi(szComputerName, PURE_COMPUTER_NAME(lpszServer)));
}
BOOL
GetVolumeInformationSystemFlags(
IN LPCTSTR lpszPath,
OUT DWORD * pdwSystemFlags
)
/*++
Routine Description:
Get the system flags for the path in question
Arguments:
LPCTSTR lpszPath : Path
DWORD * pdwSystemFlags : Returns system flags
Return Value:
TRUE for success, FALSE for failure.
--*/
{
ASSERT_WRITE_PTR(pdwSystemFlags);
TRACEEOLID("Getting system flags for " << lpszPath);
DWORD dwMaxComponentLength;
TCHAR szRoot[MAX_PATH + 1];
TCHAR szFileSystem[MAX_PATH + 1];
//
// Generating root path
//
if (IsUNCName(lpszPath))
{
//
// Root path of a UNC path is \\foo\bar\
//
ASSERT(lstrlen(lpszPath) < MAX_PATH);
int cSlashes = 0;
LPCTSTR lpszSrc = lpszPath;
LPTSTR lpszDst = szRoot;
while (cSlashes < 4 && *lpszSrc)
{
if ((*lpszDst++ = *lpszSrc++) == '\\')
{
++cSlashes;
}
}
if (!*lpszSrc)
{
*lpszDst++ = '\\';
}
*lpszDst = '\0';
}
else
{
::wsprintf(szRoot, _T("%c:\\"), *lpszPath);
}
TRACEEOLID("Root path is " << szRoot);
return ::GetVolumeInformation(
szRoot,
NULL,
0,
NULL,
&dwMaxComponentLength,
pdwSystemFlags,
szFileSystem,
STRSIZE(szFileSystem)
);
}
LPCTSTR
GenerateRegistryKey(
OUT CString & strBuffer,
IN LPCTSTR lpszSubKey OPTIONAL
)
/*++
Routine Description:
Generate a registry key name based on the current app, and a
provided subkey (optional)
Arguments:
CString & strBuffer : Buffer to create registry key name into.
LPCTSTR lpszSubKey : Subkey name or NULL
Return Value:
Pointer to the registry key value
--*/
{
try
{
//
// Use the app name as the primary registry name
//
CWinApp * pApp = ::AfxGetApp();
if (!pApp)
{
ASSERT_MSG("No app object -- can't generate registry key name");
return NULL;
}
strBuffer.Format(SZ_REG_KEY_BASE, pApp->m_pszAppName);
if (lpszSubKey)
{
strBuffer += _T("\\");
strBuffer += lpszSubKey;
}
TRACEEOLID("Registry key is " << strBuffer);
}
catch(CMemoryException * e)
{
TRACEEOLID("!!!exception building regkey");
e->ReportError();
e->Delete();
return NULL;
}
return strBuffer;
}
//
// CBlob Implementation
//
// <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
CBlob::CBlob()
/*++
Routine Description:
NULL constructor
Arguments:
None
Return Value:
N/A
--*/
: m_pbItem(NULL),
m_dwSize(0L)
{
}
CBlob::CBlob(
IN DWORD dwSize,
IN PBYTE pbItem,
IN BOOL fMakeCopy
)
/*++
Routine Description:
Constructor
Arguments:
DWORD dwSize : Size of memory block
PBYTE pbItem : Pointer to memory block
BOOL fMakeCopy : If TRUE, makes a copy of the memory block.
If FALSE, takes ownership of the pointer.
Return Value:
N/A
--*/
: m_pbItem(NULL),
m_dwSize(0L)
{
SetValue(dwSize, pbItem, fMakeCopy);
}
CBlob::CBlob(
IN const CBlob & blob
)
/*++
Routine Description:
Copy constructor
Arguments:
const CBlob & blob : Source blob
Return Value:
N/A
Notes:
This contructor makes a copy of the memory block in question.
--*/
: m_pbItem(NULL),
m_dwSize(0L)
{
SetValue(blob.GetSize(), blob.m_pbItem, TRUE);
}
void
CBlob::SetValue(
IN DWORD dwSize,
IN PBYTE pbItem,
IN BOOL fMakeCopy OPTIONAL
)
/*++
Routine Description:
Assign the value to this binary object. If fMakeCopy is FALSE,
the blob will take ownership of the pointer, otherwise a copy
will be made.
Arguments:
DWORD dwSize : Size in bytes
PBYTE pbItem : Byte streadm
BOOL fMakeCopy : If true, make a copy, else assign pointer
Return Value:
None
--*/
{
ASSERT_READ_PTR2(pbItem, dwSize);
if (!IsEmpty())
{
TRACEEOLID("Assigning value to non-empty blob. Cleaning up");
CleanUp();
}
if (dwSize > 0L)
{
//
// Make private copy
//
m_dwSize = dwSize;
if (fMakeCopy)
{
m_pbItem = (PBYTE)AllocMem(m_dwSize);
if (NULL != m_pbItem)
{
CopyMemory(m_pbItem, pbItem, dwSize);
}
}
else
{
m_pbItem = pbItem;
}
}
}
void
CBlob::CleanUp()
/*++
Routine Description:
Delete data pointer, and reset pointer and size.
Arguments:
None
Return Value:
None
--*/
{
if (m_pbItem)
{
FreeMem(m_pbItem);
}
m_pbItem = NULL;
m_dwSize = 0L;
}
CBlob &
CBlob::operator =(
IN const CBlob & blob
)
/*++
Routine Description:
Assign values from another CBlob.
Arguments:
const CBlob & blob : Source blob
Return Value:
Reference to this object
--*/
{
//
// Make copy of data
//
SetValue(blob.GetSize(), blob.m_pbItem, TRUE);
return *this;
}
BOOL
CBlob::operator ==(
IN const CBlob & blob
) const
/*++
Routine Description:
Compare two binary large objects. In order to match, the objects
must be the same size, and byte identical.
Arguments:
const CBlob & blob : Blob to compare against.
Return Value:
TRUE if the objects match, FALSE otherwise.
--*/
{
if (GetSize() != blob.GetSize())
{
return FALSE;
}
return memcmp(m_pbItem, blob.m_pbItem, GetSize()) == 0;
}