/// <summary>
/// Copies the object.
/// </summary>
/// <returns></returns>
public NetworkMachine Copy()
{
NetworkMachine nm = new NetworkMachine();
nm.Name = this.Name;
nm.IPAddress = this.IPAddress;
return(nm);
}
public bool Equals(NetworkMachine other)
{
if (other == null)
{
return(false);
}
return(this.GetHashCode() == other.GetHashCode());
}
public override bool Equals(object obj)
{
if (obj == null || GetType() != obj.GetType())
{
return(false);
}
NetworkMachine other = obj as NetworkMachine;
return(this.Equals(other));
}
/// <summary>
/// Gets the computers in the local network.
/// </summary>
/// <returns>The computers in the local network.</returns>
/// <remarks>To find computers in the local network, this method uses the Active Directory Domain Services.</remarks>
public static NetworkMachine[] GetComputersInLocalNetwork()
{
List <NetworkMachine> networkMachines = new List <NetworkMachine>();
DirectoryEntry root = new DirectoryEntry("WinNT:");
foreach (DirectoryEntry computers in root.Children)
{
foreach (DirectoryEntry computer in computers.Children)
{
if (computer.Name != "Schema")
{
var networkMachine = new NetworkMachine();
networkMachine.Name = computer.Name;
networkMachine.IPAddress = GetIP4AddressByHostname(computer.Name);
networkMachines.Add(networkMachine);
}
}
}
return(networkMachines.ToArray());
}
/// <summary>
/// Gets all network devices in a local network by IP dress range.
/// </summary>
/// <param name="ipAddressRange">The IP address range to scan.</param>
/// <returns>A NetworkMachine array containing all network devices active in the local network.</returns>
public static NetworkMachine[] GetNetworkMachinesInLocalNetworkFromIPAddressRange(IPAddress[] ipAddressRange, CancellationToken cancellationToken)
{
// Find active machines first, because Dns.GetHostEntry will last longer.
ConcurrentBag <IPAddress> alive = new ConcurrentBag <IPAddress>();
List <Task> tasks = new List <Task>();
foreach (var ip in ipAddressRange)
{
if (cancellationToken.IsCancellationRequested)
{
break;
}
var ipCopy = ip; // Work with a copy.
var task = Task.Factory.StartNew(() =>
{
var ping = new Ping();
if (ping.Send(ipCopy, 200).Status != IPStatus.TimedOut)
{
alive.Add(ip);
}
});
tasks.Add(task);
}
try
{
Task.WaitAll(tasks.ToArray(), cancellationToken);
}
catch (OperationCanceledException)
{
return(null);
}
ipAddressRange = alive.ToArray();
ConcurrentBag <NetworkMachine> networkMachines = new ConcurrentBag <NetworkMachine>();
tasks = new List <Task>();
foreach (var ip in ipAddressRange)
{
if (cancellationToken.IsCancellationRequested)
{
break;
}
var ipCopy = ip; // Work with a copy.
var task = Task.Factory.StartNew(() =>
{
try
{
var hostEntry = Dns.GetHostEntry(ip);
var networkMachine = new NetworkMachine();
networkMachine.Name = hostEntry.HostName;
IPAddress[] ip4Adresses = Array.FindAll(hostEntry.AddressList, a => a.AddressFamily == AddressFamily.InterNetwork);
if (ip4Adresses != null && ip4Adresses.Length > 0)
{
networkMachine.IPAddress = ip4Adresses[0];
}
networkMachines.Add(networkMachine);
}
catch (SocketException)
{
}
});
tasks.Add(task);
}
try
{
Task.WaitAll(tasks.ToArray(), cancellationToken);
}
catch (OperationCanceledException)
{
return(null);
}
return(networkMachines.ToArray());
}
