Function Reference

_TCPIpToName

Resolves IP adress to Hostname(s)

#include <iNet.au3>
_TCPIpToName ( $sIp [,$iOption = 0 [, $hDll_Ws2_32 = "Ws2_32.dll" ]] )

Parameters

$sIp	Ip Adress in dotted (v4) Format
$iOption	Optional, Default = 0 0 = Return String Hostname 1 = Return Array (see Remarks)
$hDll_Ws2_32	Optional, Handle to Ws2_32.dll

Return Value

Success:	Hostname or Array (see Remarks)
Failure:	""
@Error:	0 = No error.
	1 = inet_addr DllCall Failed
	2 = inet_addr Failed
	3 = gethostbyaddr DllCall Failed
	4 = gethostbyaddr Failed, WSAGetLastError = @Extended
	5 = gethostbyaddr Failed, WSAGetLastError Failed
	6 = strlen/sZStringRead Failed
	7 = Error reading Aliases Array

Remarks

A successfull WSAStartup (Done by TCPStartup) is required.
if $iOption = 1 then the returned Array looks Like this:
    $aResult[0] = Number of elemets
    $aResult[1] = "Hostname"
    $aResult[2] = "Alias 1"
    $aResult[3] = "Alias 2"
    ...

Related

TCPStartup, TCPNameToIP

Example

; Example 1
#include <inet.au3>
Dim $sResult, $sIp
TCPStartup()
$sIp = TCPNameToIP("hiddensoft.com")
$sResult = _TCPIpToName ($sIp)
If @error Then
MsgBox(0, "_TCPIpToName()", "@error = " & @error & @LF & "@extended = " & @extended)
Else
MsgBox(0, "hiddensoft.com realy is:", $sResult)
EndIf

; Example 2
#include <array.au3>
#include <inet.au3>
Dim $aResult, $sIp
TCPStartup()
$sIp = _GetIP()
$aResult = _TCPIpToName ($sIp, 1)
If @error Then
MsgBox(0, "_TCPIpToName()", "@error = " & @error & @LF & "@extended = " & @extended)
Else
_ArrayDisplay($aResult, "Local Hostname(s)")
EndIf