#128970 - 2004-11-03 04:58 PM
Using ADO to convert to / from BYTE arrays.
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Richard H.
Administrator
Registered: 2000-01-24
Posts: 4946
Loc: Leatherhead, Surrey, UK
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As you will know, KiXtart does not handle bytes which mean that manipulating binary objects (and/or files) is a bit of a problem.
Specifically I needed to convert a binary SID to it's string value.
To this end, I've created a series of UDFs which will allow the manipulation of byte arrays.
These UDFs require ADO 2.5 - I think that this is ubiquitous for Windows installations now, but if this is not the case then please let me know.
This example displays all groups and user with their associated SID:
Code:
Break ON
$=SetOption("Explicit","ON")
$=SetOption("WrapAtEOL","ON")
Dim $sDomain,$oDomain,$oGroup,$sGroupPath,$avSID,$aiBinarySID,$i
$sDomain="YOUR_DOMAIN_HERE"
$oDomain=GetObject("WinNT://"+$sDomain)
$oDomain.Filter="group",""
"GROUP SIDS: " ?
For Each $oGroup In $oDomain
$avSID=$oGroup.GetEx("objectSID")
$aiBinarySID=udfBytes2Array($avSID[0])
$oGroup.Name+", SID="+udfSID2String($aiBinarySID) ?
Next
$oDomain.Filter="user",""
"USER SIDS: " ?
For Each $oGroup In $oDomain
$avSID=$oGroup.GetEx("objectSID")
$aiBinarySID=udfBytes2Array($avSID[0])
$oGroup.Name+", SID="+udfSID2String($aiBinarySID) ?
Next
$oDomain=0
$oGroup=0
Exit 0
; Convert a SID in binary format to SDDL format
; Note, I cheat here with the 48 bit authority value.
; It works though ;)
Function udfSID2String($aiSID)
Dim $i,$dAuth
$udfSID2String="S-"+$aiSID[0]+"-"+$aiSID[1]+"-"+$aiSID[8]
For $i = 12 To UBound($aiSID) Step 4
$dAuth=CDbl($aiSid[$i+3])
$dAuth=$dAuth*256+CDbl($aiSid[$i+2])
$dAuth=$dAuth*256+CDbl($aiSid[$i+1])
$dAuth=$dAuth*256+CDbl($aiSid[$i+0])
$udfSID2String=$udfSID2String+"-"+CStr($dAuth)
Next
EndFunction
These are the binary / int conversion routines:
Code:
; Convert an array of bytes to an array of integers
Function udfBytes2Array($abBytes)
Dim $oStream,$adTypeBinary,$adTypeText,$i
$adTypeBinary=1
$oStream=CreateObject("ADODB.Stream")
If @ERROR Exit @ERROR EndIf
$oStream.Type=$adTypeBinary
$oStream.Open
$oStream.Write($abBytes)
$oStream.Position=0
Redim Preserve $udfBytes2Array[$oStream.Size-1]
For $i = 0 To UBound($udfBytes2Array)
$udfBytes2Array[$i]=Asc($oStream.Read(1))
Next
$oStream=0
Exit 0
EndFunction
; Convert an array of integers to an array of bytes
Function udfArray2Bytes($aiBytes,Optional $iBytesToConvert)
Dim $oStream,$adTypeBinary,$adTypeText,$i
$adTypeBinary=1
$adTypeText=2
If Not $iBytesToConvert $iBytesToConvert=UBound($aiBytes)+1 EndIf
$oStream=CreateObject("ADODB.Stream")
If @ERROR Exit @ERROR EndIf
$oStream.Type=$adTypeBinary
$oStream.Open
For $i = 1 To $iBytesToConvert
$oStream.Write(udfIntToByte($aiBytes[$i-1]))
Next
$oStream.Position=0
$oStream.Type=$adTypeBinary
$udfArray2Bytes=$oStream.Read($iBytesToConvert)
Exit 0
EndFunction
; Convert a single integer to a byte array
Function udfIntToByte($i)
Dim $oStream,$adTypeBinary,$adTypeText
$adTypeBinary=1
$adTypeText=2
$oStream=CreateObject("ADODB.Stream")
If @ERROR Exit @ERROR EndIf
$i=CInt($i) & 255
$oStream.Type=$adTypeText
$oStream.CharSet="unicode"
$oStream.Open
$oStream.WriteText(" "+Chr($i))
$oStream.Position=0
$oStream.Type=$adTypeBinary
If $i
$oStream.Position=$oStream.Size-2
Else
$oStream.Position=$oStream.Size-1
EndIf
$udfIntToByte=$oStream.Read(1)
Exit 0
EndFunction
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#204507 - 2012-03-17 12:40 PM
Re: Using ADO to convert to / from BYTE arrays.
[Re: Lonkero]
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It_took_my_meds
Hey THIS is FUN
Registered: 2003-05-07
Posts: 273
Loc: Sydney, Australia
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Please check out Extract icon from resource file. There is a bytes.bin file that I created attached that you can use to convert int to byte using Adodb.Stream.
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#209578 - 2014-10-23 04:19 PM
Re: Using ADO to convert to / from BYTE arrays.
[Re: It_took_my_meds]
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PapaZod
Fresh Scripter
Registered: 2006-07-07
Posts: 5
Loc: Ottawa, Canada
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This is a great thread and thanks for the ideas. One thing I noted is that often the token list is used for comparison to a group objectSID. This being the case, and that arrays are difficult to compare, I rewrote the udfs to produce strings and not arrays. This way you can simply do a single conversion, and compare the HEX strings instead of having to convert all the way to the standard SID format before comparison.
I've included the full script which uses the new "string" routines. This *should* run "As Is":
$ADS_NAME_TYPE_NT4 = 3
$ADS_NAME_TYPE_1779 = 1
$rootDSE = GetObject("LDAP://RootDSE")
$DomainContainer = $rootDSE.Get("defaultNamingContext")
$DomainShortName = Split(Split($DomainContainer,",")[0],"=")[1]
$CurrentUser = @USERID
$NameTrans = CreateObject("nametranslate")
$NameTrans.set($ADS_NAME_TYPE_NT4, $DomainShortName + "\" + $CurrentUser)
$DN = $NameTrans.get($ADS_NAME_TYPE_1779)
$oUser = GetObject("LDAP://" + $DN)
$oUser.GetInfo
$arrTG = "tokengroups",""
$oUser.GetInfoEx($arrTG, 0)
$GroupList = $oUser.GetEx("tokengroups")
? "" + (ubound($GroupList)+1) + " entries returned"
?"Listing groups"?
For $i = 0 to ubound($GroupList)
$hexSID = OctetToHexStr($GroupList[$i])
$sSID = HexSID2DecString($hexSID)
$bindSID = "LDAP://<SID=" + $sSID + ">"
$oObject = GetObject($bindSID)
if not @ERROR
$Pad = ""
if len($sSID) < 47
for $j = 1 to (47 - len($sSID))
$Pad = $Pad + " "
Next
endif
$CN = $oObject.Get("cn")
? $sSID + " " + $Pad + $CN
endif
Next
?
Exit 0
Function HexSID2DecString($sSID)
; Convert a Hex string SID to the Decimal String representation
; S-1-5-21-....
Dim $i, $j, $arrbytSID[], $lngTemp
ReDim $arrbytSID[(Len($sSID)/2) - 1]
For $j = 0 To UBound($arrbytSID)
$arrbytSID[$j] = Val("&" + Substr($sSID, (2 * $j) + 1, 2))
Next
$HexSID2DecString = "S-" + CStr($arrbytSID[0]) + "-" + CStr($arrbytSID[1]) + "-" + CStr($arrbytSID[8])
For $i = 12 To UBound($arrbytSID) Step 4
$lngTemp = CDbl($arrbytSID[$i + 3])
$lngTemp = $lngTemp * 256 + CDbl($arrbytSID[$i + 2])
$lngTemp = $lngTemp * 256 + CDbl($arrbytSID[$i + 1])
$lngTemp = $lngTemp * 256 + CDbl($arrbytSID[$i])
$HexSID2DecString = $HexSID2DecString + "-" + CStr($lngTemp)
Next
EndFunction
Function OctetToHexStr($abBytes)
; Convert the SID byte array to a HEX
; string representation of the SID
;
; Uses ADO.Stream for data type conversion
; because kiXtart can't handle typed arrays
Dim $oStream,$adTypeBinary,$i
$adTypeBinary = 1
$oStream = CreateObject("ADODB.Stream")
If @ERROR
? "error creating stream"
Exit @ERROR
EndIf
$oStream.Type = $adTypeBinary
$oStream.Open
$oStream.Write($abBytes)
$oStream.Position=0
$OctetToHexStr = ""
For $i = 0 To $oStream.size - 1
$OctetToHexStr = $OctetToHexStr + Right("0" + CStr(DecToHex(CDbl(Asc($oStream.Read(1))))),2)
Next
$oStream=0
EndFunction
Edited by Mart (2014-10-23 04:30 PM) Edit Reason: Please use code tags when posting code.
_________________________
Tim
Life is pleasant, death is peacful. It's the transition that's troublesome. -- Isaac Azimov
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