/// <exception cref="System.Exception"/>
public virtual void Init(DaemonContext context)
{
System.Console.Error.WriteLine("Initializing privileged NFS client socket...");
NfsConfiguration conf = new NfsConfiguration();
int clientPort = conf.GetInt(NfsConfigKeys.DfsNfsRegistrationPortKey, NfsConfigKeys
.DfsNfsRegistrationPortDefault);
if (clientPort < 1 || clientPort > 1023)
{
throw new RuntimeException("Must start privileged NFS server with '" + NfsConfigKeys
.DfsNfsRegistrationPortKey + "' configured to a " + "privileged port.");
}
registrationSocket = new DatagramSocket(new IPEndPoint("localhost", clientPort));
registrationSocket.SetReuseAddress(true);
args = context.GetArguments();
}
/// <summary>Checks to see if a specific port is available.</summary>
/// <remarks>
/// Checks to see if a specific port is available.
/// <br />
/// Source: Apache's mina project, via stack overflow
/// http://stackoverflow.com/questions/434718/
/// sockets-discover-port-availability-using-java
/// </remarks>
/// <param name="port">the port to check for availability</param>
public static bool Available(int port)
{
ServerSocket ss = null;
DatagramSocket ds = null;
try
{
ss = new ServerSocket(port);
ss.SetReuseAddress(true);
ds = new DatagramSocket(port);
ds.SetReuseAddress(true);
return(true);
}
catch (IOException)
{
}
finally
{
if (ds != null)
{
ds.Close();
}
if (ss != null)
{
try
{
ss.Close();
}
catch (IOException)
{
}
}
}
// should not be thrown
return(false);
}