TCPNameToIp bug or undocumented feature?

[Dirk Diggler]

Example

Func _HostIsOk($host_) ;  test if remote is exists.
    $host = $host_ 
    TCPStartup()
    if StringRegExp($host,"(([0-9]{1,3}\.){3}[0-9]{1,3})",0) = 0 then $host = TCPNameToIP ($host_)
    MsgBox(0,'',$host)
    TCPShutdown()
    if Ping($host) > 0  Then Return True
    Return False
    
EndFunc

MsgBox(0,'',_HostIsOk('microsoft.com')) 
MsgBox(0,'',_HostIsOk(''))

as u can see, TCPNameToIp for empty host name returns your own IP. is it normal?

Edited June 28, 2007 by Dirk Diggler

[Dirk Diggler]

and another example:

Func _HostIsOk($host_)
    $host = $host_ 
    if StringRegExp($host,"(([0-9]{1,3}\.){3}[0-9]{1,3})",0) = 0 then $host = TCPNameToIP ($host_)
    MsgBox(0,'',$host)
    if Ping($host) > 0  Then Return True
    Return False
    
EndFunc
MsgBox(0,'',_HostIsOk(''))
UDPStartup()
MsgBox(0,'',_HostIsOk(''))

as u can see, without TCPStartup(), if run TCPNameToIP first time, it as documented, returns empty string. But if we runs UDPStartup(), it work like TCPStartup() - second time TCPNameToIP returns your own ip

[jpm]

Your question is more a support question than a bug report.

It is true that UDPStratup is an alias of TCPStartup same for shutdown. It have been added for coherency.

For the value return on mpty string we use the gethostbyname Windows socket API so you get what MS want to return.

The local address does not seems incoherent