// Wiresharkの表示を参考にした
public static XmlDocument Query(IPEndPoint ip, int millisecs)
{
using (UdpClient client = new UdpClient(ip.AddressFamily)) {
client.Connect(ip);
Random rand = new Random();
ushort seed = (ushort)rand.Next();
{
MemoryStream os = new MemoryStream();
BEW wr = new BEW(os);
wr.Write(seed);
wr.Write((ushort)0); //Flags: 0x0000 (Name query)
wr.Write((ushort)1); //Questions: 1
wr.Write((ushort)0); //Answer RRs: 0
wr.Write((ushort)0); //Authority RRs: 0
wr.Write((ushort)0); //Additional RRs: 0
wr.Write((byte)32);
wr.Write(Encoding.ASCII.GetBytes("CKAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"));
wr.Write((byte)0);
wr.Write((ushort)0x21); //Type: NBSTAT
wr.Write((ushort)0x01); //Class: IN
byte[] bin = os.ToArray();
if (client.Send(bin, bin.Length) != bin.Length)
{
throw new EndOfStreamException();
}
}
{
XmlDocument xmlo = new XmlDocument();
XmlElement elroot = xmlo.CreateElement("wins");
xmlo.AppendChild(elroot);
XmlElement elres = xmlo.CreateElement("response");
elroot.AppendChild(elres);
byte[] bin;
{
IPEndPoint ipr = new IPEndPoint(0, 0);
IAsyncResult ar = client.BeginReceive(CbReceived, null);
if (false == ar.AsyncWaitHandle.WaitOne(millisecs, false))
{
client.Close();
}
bin = client.EndReceive(ar, ref ipr);
}
MemoryStream si = new MemoryStream(bin, false);
BER br = new BER(si);
ushort rseed = br.ReadUInt16();
if (rseed != seed)
{
throw new InvalidDataException();
}
ushort fl = br.ReadUInt16();
if (0 == (fl & 0x8000) || 0 != (fl & 15))
{
throw new InvalidDataException();
}
{
int cnt = br.ReadUInt16();
for (int x = 0; x < cnt;)
{
throw new NotSupportedException();
}
}
int[] acnt = new int[3];
acnt[0] = br.ReadUInt16();
acnt[1] = br.ReadUInt16();
acnt[2] = br.ReadUInt16();
for (int t = 0; t < 3; t++)
{
XmlElement elrrs = null;
if (t == 0)
{
elrrs = xmlo.CreateElement("answer-rrs");
}
if (t == 1)
{
elrrs = xmlo.CreateElement("authority-rrs");
}
if (t == 2)
{
elrrs = xmlo.CreateElement("additional-rrs");
}
elres.AppendChild(elrrs);
for (int x = 0; x < acnt[t]; x++)
{
XmlElement ela = xmlo.CreateElement("answer");
elrrs.AppendChild(ela);
byte cb = br.ReadByte();
byte[] name = br.ReadBytes(cb);
ela.SetAttribute("raw-name", Encoding.ASCII.GetString(name));
byte nodeType = br.ReadByte();
ela.SetAttribute("node-type", nodeType.ToString("x2"));
int atype = br.ReadUInt16();
if (atype != 0x21)
{
throw new NotSupportedException();
}
int aclass = br.ReadUInt16();
if (aclass != 1)
{
throw new NotSupportedException();
}
uint attl = br.ReadUInt32();
ela.SetAttribute("ttl", attl.ToString());
br.ReadUInt16();
byte aNamecnt = br.ReadByte();
for (int a = 0; a < aNamecnt; a++)
{
String aname = Encoding.Default.GetString(br.ReadBytes(15));
byte anty = br.ReadByte();
int afl = br.ReadUInt16();
XmlElement elan = xmlo.CreateElement("name");
ela.AppendChild(elan);
elan.SetAttribute("name", aname);
elan.SetAttribute("name-type", anty.ToString("x2"));
elan.SetAttribute("flags", afl.ToString("x4"));
}
byte[] mac = br.ReadBytes(6);
ela.SetAttribute("unit-id", String.Format("{0:x2}:{1:x2}:{2:x2}:{3:x3}:{4:x2}:{5:x2}"
, mac[0]
, mac[1]
, mac[2]
, mac[3]
, mac[4]
, mac[5]
));
}
}
return(xmlo);
}
}
}
// Wiresharkの表示を参考にした
public static XmlDocument Query(IPEndPoint ip, int millisecs) {
using (UdpClient client = new UdpClient(ip.AddressFamily)) {
client.Connect(ip);
Random rand = new Random();
ushort seed = (ushort)rand.Next();
{
MemoryStream os = new MemoryStream();
BEW wr = new BEW(os);
wr.Write(seed);
wr.Write((ushort)0);//Flags: 0x0000 (Name query)
wr.Write((ushort)1);//Questions: 1
wr.Write((ushort)0);//Answer RRs: 0
wr.Write((ushort)0);//Authority RRs: 0
wr.Write((ushort)0);//Additional RRs: 0
wr.Write((byte)32);
wr.Write(Encoding.ASCII.GetBytes("CKAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"));
wr.Write((byte)0);
wr.Write((ushort)0x21);//Type: NBSTAT
wr.Write((ushort)0x01);//Class: IN
byte[] bin = os.ToArray();
if (client.Send(bin, bin.Length) != bin.Length) throw new EndOfStreamException();
}
{
XmlDocument xmlo = new XmlDocument();
XmlElement elroot = xmlo.CreateElement("wins");
xmlo.AppendChild(elroot);
XmlElement elres = xmlo.CreateElement("response");
elroot.AppendChild(elres);
byte[] bin;
{
IPEndPoint ipr = new IPEndPoint(0, 0);
IAsyncResult ar = client.BeginReceive(CbReceived, null);
if (false == ar.AsyncWaitHandle.WaitOne(millisecs, false)) {
client.Close();
}
bin = client.EndReceive(ar, ref ipr);
}
MemoryStream si = new MemoryStream(bin, false);
BER br = new BER(si);
ushort rseed = br.ReadUInt16();
if (rseed != seed) throw new InvalidDataException();
ushort fl = br.ReadUInt16();
if (0 == (fl & 0x8000) || 0 != (fl & 15)) throw new InvalidDataException();
{
int cnt = br.ReadUInt16();
for (int x = 0; x < cnt; ) {
throw new NotSupportedException();
}
}
int[] acnt = new int[3];
acnt[0] = br.ReadUInt16();
acnt[1] = br.ReadUInt16();
acnt[2] = br.ReadUInt16();
for (int t = 0; t < 3; t++) {
XmlElement elrrs = null;
if (t == 0) elrrs = xmlo.CreateElement("answer-rrs");
if (t == 1) elrrs = xmlo.CreateElement("authority-rrs");
if (t == 2) elrrs = xmlo.CreateElement("additional-rrs");
elres.AppendChild(elrrs);
for (int x = 0; x < acnt[t]; x++) {
XmlElement ela = xmlo.CreateElement("answer");
elrrs.AppendChild(ela);
byte cb = br.ReadByte();
byte[] name = br.ReadBytes(cb);
ela.SetAttribute("raw-name", Encoding.ASCII.GetString(name));
byte nodeType = br.ReadByte();
ela.SetAttribute("node-type", nodeType.ToString("x2"));
int atype = br.ReadUInt16();
if (atype != 0x21) throw new NotSupportedException();
int aclass = br.ReadUInt16();
if (aclass != 1) throw new NotSupportedException();
uint attl = br.ReadUInt32();
ela.SetAttribute("ttl", attl.ToString());
br.ReadUInt16();
byte aNamecnt = br.ReadByte();
for (int a = 0; a < aNamecnt; a++) {
String aname = Encoding.Default.GetString(br.ReadBytes(15));
byte anty = br.ReadByte();
int afl = br.ReadUInt16();
XmlElement elan = xmlo.CreateElement("name");
ela.AppendChild(elan);
elan.SetAttribute("name", aname);
elan.SetAttribute("name-type", anty.ToString("x2"));
elan.SetAttribute("flags", afl.ToString("x4"));
}
byte[] mac = br.ReadBytes(6);
ela.SetAttribute("unit-id", String.Format("{0:x2}:{1:x2}:{2:x2}:{3:x3}:{4:x2}:{5:x2}"
, mac[0]
, mac[1]
, mac[2]
, mac[3]
, mac[4]
, mac[5]
));
}
}
return xmlo;
}
}
}