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Get interface to listen on
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| @[Link("pcap")] | |
| lib LibPcap | |
| PCAP_ERRBUF_SIZE = UInt8.new(256) | |
| fun pcap_lookupdev(errbuf : LibC::Char* ) : LibC::Char* | |
| end | |
| err = LibPcap::PCAP_ERRBUF_SIZE.dup | |
| dev = LibPcap.pcap_lookupdev(pointerof(err)) | |
| raise Exception.new("Couldn't find a default interface: #{String.new(err)}") if dev.null? | |
| puts String.new(dev) |
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