588 lines
13 KiB
C++
588 lines
13 KiB
C++
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//+---------------------------------------------------------------------------
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//
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// Microsoft Windows NT Security
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// Copyright (C) Microsoft Corporation, 1997 - 1998
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//
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// File: ldapsp.cpp
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//
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// Contents: LDAP Scheme Provider for Remote Object Retrieval
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//
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// History: 23-Jul-97 kirtd Created
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//
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//----------------------------------------------------------------------------
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#include <aclpch.hxx>
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#pragma hdrstop
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#include <ldapsp.h>
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#include <shlwapi.h>
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//+---------------------------------------------------------------------------
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//
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// Function: LdapCrackUrl
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//
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// Synopsis: Crack an LDAP URL into its relevant parts. The result must
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// be freed using LdapFreeUrlComponents
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//
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//----------------------------------------------------------------------------
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BOOL
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LdapCrackUrl (
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LPCWSTR pwszUrl,
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PLDAP_URL_COMPONENTS pLdapUrlComponents
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)
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{
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BOOL fResult = TRUE;
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ULONG cbUrl = INTERNET_MAX_PATH_LENGTH;
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LPWSTR pwszHostInfo = NULL;
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LPWSTR pwszDN = NULL;
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LPWSTR pwszAttrList = NULL;
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LPWSTR pwszScope = NULL;
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LPWSTR pwszFilter = NULL;
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LPWSTR pwszToken = NULL;
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WCHAR pwszBuffer[INTERNET_MAX_PATH_LENGTH+1];
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PWCHAR pwsz = pwszBuffer;
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DWORD len = 0;
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HRESULT hr;
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//
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// Capture the URL and initialize the out parameter
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//
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if ( wcsncmp( pwszUrl, LDAP_SCHEME_U, wcslen( LDAP_SCHEME_U ) ) == 0 )
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{
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__try
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{
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hr = UrlCanonicalizeW(
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pwszUrl,
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pwsz,
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&cbUrl,
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ICU_DECODE | URL_WININET_COMPATIBILITY);
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if(FAILED(hr))
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{
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return( FALSE );
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}
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}
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__except(EXCEPTION_EXECUTE_HANDLER)
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{
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SetLastError( GetExceptionCode() );
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return( FALSE );
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}
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}
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else
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{
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len = wcslen(pwszUrl);
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if (len > INTERNET_MAX_PATH_LENGTH)
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{
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pwsz = new WCHAR [len + 1];
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if (pwsz == NULL)
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{
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SetLastError(ERROR_NOT_ENOUGH_MEMORY);
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return( FALSE );
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}
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}
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wcscpy(pwsz, pwszUrl);
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}
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memset( pLdapUrlComponents, 0, sizeof( LDAP_URL_COMPONENTS ) );
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//
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// Find the host
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//
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pwszHostInfo = pwsz + sizeof( "ldap://" ) - sizeof( CHAR );
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if ( *pwszHostInfo == L'/' )
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{
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pwszToken = pwszHostInfo + 1;
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pwszHostInfo = NULL;
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}
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else
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{
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pwszHostInfo = wcstok( pwszHostInfo, L"/" );
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}
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//
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// Find the DN
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//
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if ( wcsncmp( pwszUrl, LDAP_SCHEME_U, wcslen( LDAP_SCHEME_U ) ) == 0 )
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{
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if ( pwszToken != NULL )
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{
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pwszDN = L"";
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if ( *pwszToken != L'\0' )
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{
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if ( *pwszToken == L'?' )
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{
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pwszToken += 1;
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}
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else
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{
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pwszDN = pwszToken;
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do
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{
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pwszToken += 1;
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}
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while ( ( *pwszToken != L'\0' ) && ( *pwszToken != L'?' ) );
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if ( *pwszToken == L'?' )
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{
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*pwszToken = L'\0';
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pwszToken += 1;
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}
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}
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}
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}
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else
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{
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pwszDN = wcstok( pwszToken, L"?" );
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pwszToken = NULL;
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if ( pwszDN == NULL )
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{
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SetLastError( E_INVALIDARG );
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return( FALSE );
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}
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}
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//
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// Check for attributes
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//
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if ( pwszToken != NULL )
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{
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if ( *pwszToken == L'?' )
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{
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pwszAttrList = L"";
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pwszToken += 1;
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}
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else if ( *pwszToken == L'\0' )
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{
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pwszAttrList = NULL;
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}
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else
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{
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pwszAttrList = wcstok( pwszToken, L"?" );
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pwszToken = NULL;
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}
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}
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else
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{
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pwszAttrList = wcstok( NULL, L"?" );
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}
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//
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// Check for a scope and filter
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//
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if ( pwszAttrList != NULL )
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{
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pwszScope = wcstok( pwszToken, L"?" );
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if ( pwszScope != NULL )
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{
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pwszFilter = wcstok( NULL, L"?" );
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}
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}
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if ( pwszScope == NULL )
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{
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pwszScope = L"base";
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}
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if ( pwszFilter == NULL )
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{
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pwszFilter = L"(objectClass=*)";
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}
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}
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else
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{
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if ( pwszToken != NULL )
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{
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pwszDN = pwszToken;
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}
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else
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{
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//
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// pwszDN = wcstok( pwszToken, L"\0" );
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//
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pwszDN = pwszHostInfo + wcslen( pwszHostInfo ) + 1;
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}
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pwszAttrList = NULL;
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pwszFilter = L"(objectClass=*)";
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pwszScope = L"base";
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}
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//
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// Now we build up our URL components
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//
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fResult = LdapParseCrackedHost( pwszHostInfo, pLdapUrlComponents );
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if ( fResult == TRUE )
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{
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fResult = LdapParseCrackedDN( pwszDN, pLdapUrlComponents );
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}
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if ( fResult == TRUE )
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{
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fResult = LdapParseCrackedAttributeList(
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pwszAttrList,
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pLdapUrlComponents
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);
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}
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if ( fResult == TRUE )
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{
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fResult = LdapParseCrackedScopeAndFilter(
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pwszScope,
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pwszFilter,
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pLdapUrlComponents
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);
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}
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if ( fResult != TRUE )
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{
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LdapFreeUrlComponents( pLdapUrlComponents );
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}
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if (pwsz != pwszBuffer)
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{
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delete pwsz;
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}
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return( fResult );
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}
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//+---------------------------------------------------------------------------
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//
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// Function: LdapParseCrackedHost
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//
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// Synopsis: Parse the cracked host string (pwszHost is modified)
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//
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//----------------------------------------------------------------------------
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BOOL
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LdapParseCrackedHost (
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LPWSTR pwszHost,
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PLDAP_URL_COMPONENTS pLdapUrlComponents
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)
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{
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LPWSTR pwszPort;
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if ( pwszHost == NULL )
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{
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pLdapUrlComponents->pwszHost = NULL;
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pLdapUrlComponents->Port = LDAP_PORT;
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return( TRUE );
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}
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pwszPort = wcschr( pwszHost, L':' );
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if ( pwszPort != NULL )
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{
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*pwszPort = L'\0';
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pwszPort++;
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}
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pLdapUrlComponents->pwszHost = new WCHAR [wcslen( pwszHost ) + 1];
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if ( pLdapUrlComponents->pwszHost == NULL )
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{
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SetLastError( E_OUTOFMEMORY );
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return( FALSE );
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}
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wcscpy( pLdapUrlComponents->pwszHost, pwszHost );
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pLdapUrlComponents->Port = 0;
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if ( pwszPort != NULL )
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{
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pLdapUrlComponents->Port = _wtol( pwszPort );
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}
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if ( pLdapUrlComponents->Port == 0 )
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{
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pLdapUrlComponents->Port = LDAP_PORT;
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}
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return( TRUE );
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}
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//+---------------------------------------------------------------------------
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//
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// Function: LdapParseCrackedDN
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//
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// Synopsis: Parse the cracked DN
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//
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//----------------------------------------------------------------------------
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BOOL
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LdapParseCrackedDN (
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LPWSTR pwszDN,
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PLDAP_URL_COMPONENTS pLdapUrlComponents
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)
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{
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pLdapUrlComponents->pwszDN = new WCHAR [wcslen( pwszDN ) + 1];
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if ( pLdapUrlComponents->pwszDN == NULL )
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{
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SetLastError( E_OUTOFMEMORY );
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return( FALSE );
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}
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wcscpy( pLdapUrlComponents->pwszDN, pwszDN );
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return( TRUE );
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}
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//+---------------------------------------------------------------------------
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//
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// Function: LdapParseCrackedAttributeList
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//
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// Synopsis: Parse the cracked attribute list
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//
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//----------------------------------------------------------------------------
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BOOL
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LdapParseCrackedAttributeList (
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LPWSTR pwszAttrList,
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PLDAP_URL_COMPONENTS pLdapUrlComponents
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)
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{
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LPWSTR pwsz;
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LPWSTR pwszAttr;
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ULONG cAttr = 0;
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ULONG cCount;
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if ( ( pwszAttrList == NULL ) || ( wcslen( pwszAttrList ) == 0 ) )
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{
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pLdapUrlComponents->cAttr = 0;
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pLdapUrlComponents->apwszAttr = NULL;
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return( TRUE );
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}
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pwsz = new WCHAR [wcslen( pwszAttrList ) + 1];
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if ( pwsz == NULL )
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{
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SetLastError( E_OUTOFMEMORY );
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return( FALSE );
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}
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wcscpy( pwsz, pwszAttrList );
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pwszAttr = wcstok( pwsz, L"," );
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while ( pwszAttr != NULL )
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{
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cAttr += 1;
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pwszAttr = wcstok( NULL, L"," );
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}
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pLdapUrlComponents->apwszAttr = new LPWSTR [cAttr+1];
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if ( pLdapUrlComponents->apwszAttr == NULL )
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{
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delete pwsz;
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SetLastError( E_OUTOFMEMORY );
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return( FALSE );
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}
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pLdapUrlComponents->cAttr = cAttr;
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for ( cCount = 0; cCount < cAttr; cCount++ )
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{
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pLdapUrlComponents->apwszAttr[cCount] = pwsz;
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pwsz += ( wcslen(pwsz) + 1 );
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}
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pLdapUrlComponents->apwszAttr[cAttr] = NULL;
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return( TRUE );
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}
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//+---------------------------------------------------------------------------
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//
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// Function: LdapParseCrackedScopeAndFilter
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//
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// Synopsis: Parse the cracked scope and filter
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//
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//----------------------------------------------------------------------------
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BOOL
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LdapParseCrackedScopeAndFilter (
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LPWSTR pwszScope,
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LPWSTR pwszFilter,
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|
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PLDAP_URL_COMPONENTS pLdapUrlComponents
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)
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{
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ULONG Scope;
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|
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if ( _wcsicmp( pwszScope, L"base" ) == 0 )
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{
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Scope = LDAP_SCOPE_BASE;
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}
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else if ( _wcsicmp( pwszScope, L"one" ) == 0 )
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{
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|
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Scope = LDAP_SCOPE_ONELEVEL;
|
||
|
|
}
|
||
|
|
else if ( _wcsicmp( pwszScope, L"sub" ) == 0 )
|
||
|
|
{
|
||
|
|
Scope = LDAP_SCOPE_SUBTREE;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
SetLastError( E_INVALIDARG );
|
||
|
|
return( FALSE );
|
||
|
|
}
|
||
|
|
|
||
|
|
pLdapUrlComponents->pwszFilter = new WCHAR [wcslen( pwszFilter ) + 1];
|
||
|
|
if ( pLdapUrlComponents->pwszFilter == NULL )
|
||
|
|
{
|
||
|
|
SetLastError( E_OUTOFMEMORY );
|
||
|
|
return( FALSE );
|
||
|
|
}
|
||
|
|
|
||
|
|
wcscpy( pLdapUrlComponents->pwszFilter, pwszFilter );
|
||
|
|
pLdapUrlComponents->Scope = Scope;
|
||
|
|
|
||
|
|
return( TRUE );
|
||
|
|
}
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Function: LdapFreeUrlComponents
|
||
|
|
//
|
||
|
|
// Synopsis: Frees allocate URL components returned from LdapCrackUrl
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
VOID
|
||
|
|
LdapFreeUrlComponents (
|
||
|
|
PLDAP_URL_COMPONENTS pLdapUrlComponents
|
||
|
|
)
|
||
|
|
{
|
||
|
|
delete pLdapUrlComponents->pwszHost;
|
||
|
|
delete pLdapUrlComponents->pwszDN;
|
||
|
|
|
||
|
|
if ( pLdapUrlComponents->apwszAttr != NULL )
|
||
|
|
{
|
||
|
|
delete pLdapUrlComponents->apwszAttr[0];
|
||
|
|
}
|
||
|
|
|
||
|
|
delete pLdapUrlComponents->apwszAttr;
|
||
|
|
delete pLdapUrlComponents->pwszFilter;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Function: LdapGetBindings
|
||
|
|
//
|
||
|
|
// Synopsis: allocates and initializes the LDAP session binding
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
BOOL
|
||
|
|
LdapGetBindings (
|
||
|
|
LPWSTR pwszHost,
|
||
|
|
ULONG Port,
|
||
|
|
DWORD dwRetrievalFlags,
|
||
|
|
DWORD dwTimeout,
|
||
|
|
LDAP** ppld
|
||
|
|
)
|
||
|
|
{
|
||
|
|
BOOL fResult = TRUE;
|
||
|
|
LDAP* pld;
|
||
|
|
|
||
|
|
pld = ldap_initW( pwszHost, Port );
|
||
|
|
if ( pld != NULL )
|
||
|
|
{
|
||
|
|
ULONG ldaperr;
|
||
|
|
|
||
|
|
if ( dwTimeout != 0 )
|
||
|
|
{
|
||
|
|
ldap_set_option( pld, LDAP_OPT_TIMELIMIT, (void *)&dwTimeout );
|
||
|
|
}
|
||
|
|
|
||
|
|
fResult = LdapBindWithOptionalRediscover( pld, pwszHost );
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
fResult = FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( fResult == TRUE )
|
||
|
|
{
|
||
|
|
*ppld = pld;
|
||
|
|
}
|
||
|
|
|
||
|
|
return( fResult );
|
||
|
|
}
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Function: LdapFreeBindings
|
||
|
|
//
|
||
|
|
// Synopsis: frees allocated LDAP session binding
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
VOID
|
||
|
|
LdapFreeBindings (
|
||
|
|
LDAP* pld
|
||
|
|
)
|
||
|
|
{
|
||
|
|
if ( pld != NULL )
|
||
|
|
{
|
||
|
|
ldap_unbind_s( pld );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Function: LdapBindWithOptionalRediscover
|
||
|
|
//
|
||
|
|
// Synopsis: bind to the host with optional DC rediscovery if the host is
|
||
|
|
// NULL (which means use default via DsGetDcName)
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
BOOL
|
||
|
|
LdapBindWithOptionalRediscover (LDAP* pld, LPWSTR pwszHost)
|
||
|
|
{
|
||
|
|
BOOL fResult = TRUE;
|
||
|
|
ULONG ldaperr;
|
||
|
|
ULONG ldapsaveerr;
|
||
|
|
DWORD dwFlags = DS_FORCE_REDISCOVERY;
|
||
|
|
|
||
|
|
ldaperr = ldap_bind_sW(
|
||
|
|
pld,
|
||
|
|
NULL,
|
||
|
|
NULL,
|
||
|
|
LDAP_AUTH_SSPI
|
||
|
|
);
|
||
|
|
|
||
|
|
if ( ( ldaperr != LDAP_SUCCESS ) && ( pwszHost == NULL ) )
|
||
|
|
{
|
||
|
|
ldapsaveerr = ldaperr;
|
||
|
|
|
||
|
|
ldaperr = ldap_set_option(
|
||
|
|
pld,
|
||
|
|
LDAP_OPT_GETDSNAME_FLAGS,
|
||
|
|
(LPVOID)&dwFlags
|
||
|
|
);
|
||
|
|
|
||
|
|
if ( ldaperr == LDAP_SUCCESS )
|
||
|
|
{
|
||
|
|
ldaperr = ldap_bind_sW(
|
||
|
|
pld,
|
||
|
|
NULL,
|
||
|
|
NULL,
|
||
|
|
LDAP_AUTH_SSPI
|
||
|
|
);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
ldaperr = ldapsaveerr;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( ldaperr != LDAP_SUCCESS )
|
||
|
|
{
|
||
|
|
fResult = FALSE;
|
||
|
|
SetLastError( LdapMapErrorToWin32(ldaperr) );
|
||
|
|
}
|
||
|
|
|
||
|
|
return( fResult );
|
||
|
|
}
|