Win32 gethostbyaddr() does NetBIOS query?

Walter H. Walter.H at
Mon Jan 24 00:04:51 GMT 2005


I found a quite suspicious way the gethostbyaddr() works;

I have a programme which calls this API for IP-addresses it gets from my
firewall, and
if this IP-addr has no reverse DNS entry anywhere it wants to access the
host, but this is blocked on the firewall; if this IP-addr has a reverse
DNS entry anywhere everything goes fine.

this phenomena I saw on both: WinNT 3.51 with SP5a and WinNT 4.00 with


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