public static IList <pcap_if> findalldevs()
{
IntPtr alldevsp = IntPtr.Zero;
StringBuilder error = new StringBuilder(libpcap.PCAP_ERRBUF_SIZE);
if (libpcap.pcap_findalldevs(ref alldevsp, error) < 0)
{
return(null);
}
try
{
var all = new List <pcap_if>();
pcap_if_t dev = (pcap_if_t)Marshal.PtrToStructure(alldevsp, typeof(pcap_if_t));
all.Add(get_if(dev));
while (dev.next != IntPtr.Zero)
{
dev = (pcap_if_t)Marshal.PtrToStructure(dev.next, typeof(pcap_if_t));
all.Add(get_if(dev));
}
return(all);
}
catch (Exception)
{
throw;
}
finally
{
libpcap.pcap_freealldevs(alldevsp);
}
}
private static pcap_if get_if(pcap_if_t ifdata)
{
return(new pcap_if()
{
m_description = Marshal.PtrToStringAnsi(ifdata.description),
m_name = Marshal.PtrToStringAnsi(ifdata.name),
m_flags = ifdata.flags,
addrs = pcap_addr.get_addresses(ifdata.addresses)
});
}
