/// <exception cref="UnknownHostException"></exception>
internal virtual NbtAddress[] GetAllByName(Name name, IPAddress addr)
{
int n;
NameQueryRequest request = new NameQueryRequest(name);
NameQueryResponse response = new NameQueryResponse();
request.Addr = addr ?? NbtAddress.GetWinsAddress();
request.IsBroadcast = request.Addr == null;
if (request.IsBroadcast)
{
request.Addr = Baddr;
n = RetryCount;
}
else
{
request.IsBroadcast = false;
n = 1;
}
do
{
try
{
Send(request, response, RetryTimeout);
}
catch (IOException ioe)
{
if (_log.Level > 1)
{
Runtime.PrintStackTrace(ioe, _log);
}
throw new UnknownHostException(ioe);
}
if (response.Received && response.ResultCode == 0)
{
return(response.AddrEntry);
}
}while (--n > 0 && request.IsBroadcast);
throw new UnknownHostException();
}
/// <exception cref="UnknownHostException"></exception>
internal virtual NbtAddress GetByName(Name name, IPAddress addr)
{
int n;
NameQueryRequest request = new NameQueryRequest(name);
NameQueryResponse response = new NameQueryResponse();
if (addr != null)
{
request.Addr = addr;
request.IsBroadcast = (addr.GetAddressBytes()[3] == unchecked (unchecked (0xFF)));
n = RetryCount;
do
{
try
{
Send(request, response, RetryTimeout);
}
catch (IOException ioe)
{
if (_log.Level > 1)
{
Runtime.PrintStackTrace(ioe, _log);
}
throw new UnknownHostException(ioe);
}
if (response.Received && response.ResultCode == 0 &&
response.IsResponse)
{
int last = response.AddrEntry.Length - 1;
response.AddrEntry[last].HostName.SrcHashCode = addr.GetHashCode();
return(response.AddrEntry[last]);
}
}while (--n > 0 && request.IsBroadcast);
throw new UnknownHostException();
}
for (int i = 0; i < _resolveOrder.Length; i++)
{
try
{
switch (_resolveOrder[i])
{
case ResolverLmhosts:
{
NbtAddress ans = Lmhosts.GetByName(name);
if (ans != null)
{
ans.HostName.SrcHashCode = 0;
// just has to be different
// from other methods
return(ans);
}
break;
}
case ResolverWins:
case ResolverBcast:
{
if (_resolveOrder[i] == ResolverWins && name.name != NbtAddress.MasterBrowserName &&
name.HexCode != unchecked (0x1d))
{
request.Addr = NbtAddress.GetWinsAddress();
request.IsBroadcast = false;
}
else
{
request.Addr = Baddr;
request.IsBroadcast = true;
}
n = RetryCount;
while (n-- > 0)
{
try
{
Send(request, response, RetryTimeout);
}
catch (IOException ioe)
{
if (_log.Level > 1)
{
Runtime.PrintStackTrace(ioe, _log);
}
throw new UnknownHostException(ioe);
}
if (response.Received && response.ResultCode == 0 &&
response.IsResponse)
{
response.AddrEntry[0].HostName.SrcHashCode = request.Addr.GetHashCode();
return(response.AddrEntry[0]);
}
if (_resolveOrder[i] == ResolverWins)
{
break;
}
}
break;
}
}
}
catch (IOException)
{
}
}
throw new UnknownHostException();
}
/// <exception cref="System.IO.IOException"></exception>
internal virtual void Send(NameServicePacket request, NameServicePacket response,
int timeout)
{
int nid = 0;
int max = NbtAddress.Nbns.Length;
if (max == 0)
{
max = 1;
}
lock (response)
{
while (max-- > 0)
{
try
{
lock (_lock)
{
request.NameTrnId = GetNextNameTrnId();
nid = request.NameTrnId;
response.Received = false;
_responseTable.Put(nid, response);
EnsureOpen(timeout + 1000);
int requestLenght = request.WriteWireFormat(_sndBuf, 0);
//NEW SOCKET
_socket.Send(_sndBuf, 0, requestLenght, SocketFlags.None);
//_socket.Send(_sndBuf, 0, requestLenght, new IPEndPoint(request.Addr, _lport));
if (_log.Level > 3)
{
_log.WriteLine(request);
Hexdump.ToHexdump(_log, _sndBuf, 0, requestLenght);
}
}
if (_waitResponse)
{
long start = Runtime.CurrentTimeMillis();
while (timeout > 0)
{
Runtime.Wait(response, timeout);
if (response.Received && request.QuestionType == response.RecordType)
{
return;
}
response.Received = false;
timeout -= (int)(Runtime.CurrentTimeMillis() - start);
}
}
}
catch (Exception ie)
{
throw new IOException(ie.Message);
}
finally
{
//Sharpen.Collections.Remove(responseTable, nid);
if (_waitResponse)
{
_responseTable.Remove(nid);
}
}
if (_waitResponse)
{
lock (_lock)
{
if (NbtAddress.IsWins(request.Addr) == false)
{
break;
}
if (request.Addr == NbtAddress.GetWinsAddress())
{
NbtAddress.SwitchWins();
}
request.Addr = NbtAddress.GetWinsAddress();
}
}
}
}
}
internal NameServiceClient(int lport, IPAddress laddr)
{
this._lport = lport;
this.laddr = laddr;
try
{
Baddr = Config.GetInetAddress("jcifs.netbios.baddr", Extensions.GetAddressByName("255.255.255.255"));
}
catch (Exception e)
{
LogStream.GetInstance().WriteLine(e);
}
_sndBuf = new byte[SndBufSize];
_rcvBuf = new byte[RcvBufSize];
if (string.IsNullOrEmpty(Ro))
{
if (NbtAddress.GetWinsAddress() == null)
{
_resolveOrder = new int[2];
_resolveOrder[0] = ResolverLmhosts;
_resolveOrder[1] = ResolverBcast;
}
else
{
_resolveOrder = new int[3];
_resolveOrder[0] = ResolverLmhosts;
_resolveOrder[1] = ResolverWins;
_resolveOrder[2] = ResolverBcast;
}
}
else
{
int[] tmp = new int[3];
StringTokenizer st = new StringTokenizer(Ro, ",");
int i = 0;
while (st.HasMoreTokens())
{
string s = st.NextToken().Trim();
if (Runtime.EqualsIgnoreCase(s, "LMHOSTS"))
{
tmp[i++] = ResolverLmhosts;
}
else
{
if (Runtime.EqualsIgnoreCase(s, "WINS"))
{
if (NbtAddress.GetWinsAddress() == null)
{
if (_log.Level > 1)
{
_log.WriteLine("NetBIOS resolveOrder specifies WINS however the " + "jcifs.netbios.wins property has not been set"
);
}
continue;
}
tmp[i++] = ResolverWins;
}
else
{
if (Runtime.EqualsIgnoreCase(s, "BCAST"))
{
tmp[i++] = ResolverBcast;
}
else
{
if (Runtime.EqualsIgnoreCase(s, "DNS"))
{
}
else
{
// skip
if (_log.Level > 1)
{
_log.WriteLine("unknown resolver method: " + s);
}
}
}
}
}
}
_resolveOrder = new int[i];
Array.Copy(tmp, 0, _resolveOrder, 0, i);
}
}