On 01/03/18 15:15, Brian wrote:
Do you know of any kernel functions that would return the current IP address?
I think you're looking for something like SIOCGIFADDR in netdevice(7), but it's not necessarily what you want. You need to take into account that a single host might have multiple interfaces, and that each interface might have multiple assigned IP addresses (aliases in IP4 terms). In practical terms you almost always either want to tell a program which of the available IP addresses to use or let it use 0.0.0.0, and don't for one moment dream of embedding an IP address inside your comms protocol since you'll end up with a proxying nightmare like VOIP.
The only time I've really needed to play with this was when trying to work out a machine's local neighbours so I could see whether they responded to a non-standard UDP protocol.
-- Mark Morgan Lloyd markMLl .AT. telemetry.co .DOT. uk [Opinions above are the author's, not those of his employers or colleagues] _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
