gethostbyname

[Deye]

Hi,

i.e using $sIPAddress = TCPNameToIP("http://example.ddns.net")  got me error: 11004 WSANO_DATA

 which lead me to look for "gethostbyname"

Can  this function can be tweaked to work along giving it an address parameter ( presuming it can also work from out side IPs )
Running it locally with the private network address ..worked!

; https://www.autoitscript.com/forum/topic/165201-dllstructcreate-alignment-problem/?do=findComment&comment=1206048

Func _hostbyname($sAddress)
    TCPStartup()
    $pointer = DllCall("Ws2_32.dll", "ptr", "gethostbyname", "str", "")
    $pointer = $pointer[0]
    $hostent = DllStructCreate("ptr h_name; ptr h_aliases; short h_addrtype; short h_length;ptr h_addr_list", $pointer)
    $sh_addr_list = DllStructCreate("ptr", DllStructGetData($hostent, "h_addr_list")) ;We get the Pointer to an array of addr
    $inaddr = DllStructCreate("ptr", DllStructGetData($sh_addr_list, 1)) ;we get the array[0] ;if you want to get another index just plus 4
    $uint = DllStructGetData($inaddr, 1)
    $ret = DllCall("Ws2_32.dll", "str", "inet_ntoa", "UINT", $uint)
    Return $ret[0]
    TCPShutdown()
EndFunc   ;==>_hostbyname

 

[jguinch]

"http://example.ddns.net"  is not a host name

 

[Deye]

jguinch,

Its an address that doesn't work for me with TCPNameToIP 
the function in question is for gethostbyname  ..what else
 

Thanks

[TheDcoder]

@Deye As mentioned by @jguinch, example.ddns.net does not exist. It is the same as trying to get god.universe's IP address

[Deye]

I take it this function maybe only good for getting the address's IP in case the requester has the same (external ip) ?

what do you get when running TCPNameToIP() against your own ddns.net which is linked to the computer you are running the command off ?

example.ddns.net is of course  fake (i.e: example)

[TheDcoder]

24 minutes ago, Deye said:

what do you get when running TCPNameToIP() against your own ddns.net which is linked to the computer you are running the command off ?

What is ddns.net?

[Deye]

Use of Dynamic DNS needs an implementation ..

Anyone, please confirm do you get any ip for this address:  

MsgBox(0,"", TCPNameToIP("http://scriptlistener.ddns.net"))

 

[TheDcoder]

Your dynamic DNS address will always point towards the host computer's external IP address.

2 minutes ago, Deye said:

Anyone, please confirm do you get any ip for this address:  

You should remove http:// because its a protocol identifier used by browsers, domain names don't need any protocol to associate with.

I tried your snippet, and here is the result:

[Deye]

Well then that explains to me =  trouble at its absence

Thanks again for all the great help !

[jguinch]

It's what I said : "http://example.ddns.net"  is not a host name ...