// This callback will run after each ping iteration
// This is technically our main update loop for the graph
void OnPingResultsUpdateCallback(PingResults r)
{
// Make sure we're not updating the display too frequently
if (!displayUpdateLimiter.RequestRun())
{
return;
}
int scalePrevious = m_Scale;
// Reset position
Console.CursorTop = m_PlotStartY;
Console.CursorLeft = m_PlotStartX;
// Update labels
UpdateLegend(r);
// Get results from ping and add to graph
AddResponseToGraph(r.CurrTime);
// Draw graph columns
DrawColumns();
// Only draw the y axis labels if the scale has changed
if (scalePrevious != m_Scale)
{
DrawYAxisLabels();
}
Console.CursorTop = EndCursorPosY;
}
/// <summary>
/// Stores graph drawing loop
/// </summary>
private void Draw()
{
// The actual display update rate may be limited by the ping interval
RateLimiter displayUpdateLimiter = new RateLimiter(TimeSpan.FromMilliseconds(500));
// This callback will run after each ping iteration
void ResultsUpdateCallback(PingResults r)
{
// Make sure we're not updating the display too frequently
//if (!displayUpdateLimiter.RequestRun()) {
// return;
//}
// Reset position
Console.CursorTop = m_PlotStartY;
Console.CursorLeft = m_PlotStartX;
// Update labels
UpdateLegend(r);
// Get results from ping and add to graph
AddResponseToGraph(r.CurrTime);
// Draw graph columns
DrawGraphColumns();
DrawYAxisLabels();
Console.CursorTop = EndCursorPosY;
}
// Start pinging
PingResults results = m_Ping.Send(m_PingAttributes, ResultsUpdateCallback);
}
public static void Start(string address, CancellationToken cancellationToken)
{
PingAttributes attrs = new PingAttributes();
m_Address = address;
// Verify address
attrs.ResolvedAddress = Lookup.QueryDNS(address, AddressFamily.InterNetwork);
// Setup ping attributes
attrs.Interval = 0;
attrs.Timeout = 100;
attrs.Message = "R U Dead Yet?";
// TODO: Option for 'heavy' flood with bloated packet sizes
attrs.Continous = true;
Ping p = new Ping(attrs, cancellationToken, ResultsUpdateCallback);
// Disable output for faster speeds
Display.ShowOutput = false;
// Start flooding
PingResults results = p.Send();
// Display results
Display.ShowOutput = true;
Display.PingResults(attrs, results);
}
public void Start(string address, CancellationToken cancellationToken)
{
PingAttributes attrs = new PingAttributes();
_address = address;
// Verify address
attrs.ResolvedAddress = Lookup.QueryDNS(address, AddressFamily.InterNetwork);
// Setup ping attributes
attrs.Interval = 0;
attrs.Timeout = 100;
attrs.Message = "R U Dead Yet?";
// TODO: Option for 'heavy' flood with bloated packet sizes
attrs.Continous = true;
// Setup ping object
Ping p = new Ping(attrs, cancellationToken);
p.OnResultsUpdate += OnResultsUpdate;
// Start flooding
PingResults results = p.Send();
ConsoleDisplay.PingResults(attrs, results);
}
/// <summary>
/// Sends a set of ping packets, results are stores within
/// Ping.Results of the called object
///
/// Acts as a basic wrapper to SendICMP and feeds it a specific
/// set of PingAttributes
/// </summary>
public PingResults Send(PingAttributes attrs, Action <PingResults> onResultsUpdate = null)
{
// Lookup host if specified
if (attrs.InputtedAddress != "")
{
attrs.Address = Lookup.QueryDNS(attrs.InputtedAddress, attrs.ForceV4 ? AddressFamily.InterNetwork : AddressFamily.InterNetworkV6);
}
Display.PingIntroMsg(attrs);
if (Display.UseResolvedAddress)
{
try {
attrs.InputtedAddress = Helper.RunWithCancellationToken(() => Lookup.QueryHost(attrs.Address), m_CancellationToken);
} catch (OperationCanceledException) {
return(new PingResults());
}
if (attrs.InputtedAddress == "")
{
// If reverse lookup fails just display whatever is in the address field
attrs.InputtedAddress = attrs.Address;
}
}
// Perform ping operation and store results
PingResults results = SendICMP(attrs, onResultsUpdate);
if (Display.ShowOutput)
{
Display.PingResults(attrs, results);
}
return(results);
}
private void Reset()
{
m_CurrentSequenceNumber = 0;
m_CurrentReceiveTimeout = 0;
// Wipe any previous results
m_PingResults = new PingResults();
}
private void Cleanup()
{
// On deconstruction
m_Socket.Close();
m_Packet = null;
m_PingAttributes = null;
m_PingResults = null;
OnPingResultsUpdateCallback = null;
}
public Ping(PingAttributes attributes, CancellationToken cancellationToken, Action <PingResults> resultsUpdateCallback = null) // On results update
{
m_PingAttributes = attributes;
m_PingResults = new PingResults();
m_CancellationToken = cancellationToken;
OnPingResultsUpdateCallback = resultsUpdateCallback;
Setup();
}
/// <summary>
/// Listens for all ICMPv4 activity on localhost.
///
/// Does this by setting a raw socket to SV_IO_ALL which
/// will recieve all packets and filters to just show
/// ICMP packets. Runs until ctrl-c or exit
/// </summary>
/// <source>https://stackoverflow.com/a/9174392</source>
public void Listen()
{
IPAddress localAddress = null;
Socket listeningSocket = null;
PingResults results = new PingResults();
// Find local address
localAddress = IPAddress.Parse(PowerPing.Lookup.LocalAddress());
IsRunning = true;
try {
// Create listener socket
listeningSocket = CreateRawSocket(AddressFamily.InterNetwork);
listeningSocket.Bind(new IPEndPoint(localAddress, 0));
listeningSocket.IOControl(IOControlCode.ReceiveAll, new byte[] { 1, 0, 0, 0 }, new byte[] { 1, 0, 0, 0 }); // Set SIO_RCVALL flag to socket IO control
PowerPing.Display.ListenIntroMsg();
// Listening loop
while (true)
{
byte[] buffer = new byte[4096]; // TODO: could cause overflow?
// Recieve any incoming ICMPv4 packets
EndPoint remoteEndPoint = new IPEndPoint(IPAddress.Any, 0);
int bytesRead = listeningSocket.ReceiveFrom(buffer, ref remoteEndPoint);
ICMP response = new ICMP(buffer, bytesRead);
// Display captured packet
PowerPing.Display.CapturedPacket(response, remoteEndPoint.ToString(), DateTime.Now.ToString("h:mm:ss.ff tt"), bytesRead);
// Store results
results.CountPacketType(response.type);
results.Received++;
if (cancelEvent.WaitOne(0))
{
break;
}
}
} catch (SocketException) {
PowerPing.Display.Error("Could not read packet from socket");
results.Lost++;
} catch (Exception) {
PowerPing.Display.Error("General exception occured", true);
}
// Clean up
IsRunning = false;
listeningSocket.Close();
Display.ListenResults(results);
}
public static void ListenForICMPOnAddress(IPAddress address)
{
Socket listeningSocket = null;
PingResults results = new PingResults();
int bufferSize = 4096;
// Create listener socket
try
{
listeningSocket = new Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.Icmp);
listeningSocket.Bind(new IPEndPoint(address, 0));
listeningSocket.IOControl(IOControlCode.ReceiveAll, new byte[] { 1, 0, 0, 0 }, new byte[] { 1, 0, 0, 0 }); // Set SIO_RCVALL flag to socket IO control
listeningSocket.ReceiveBufferSize = bufferSize;
}
catch (Exception e)
{
ConsoleDisplay.Error($"Exception occured while trying to create listening socket for {address.ToString()} ({e.GetType().ToString().Split('.').Last()})");
return;
}
ConsoleDisplay.ListenIntroMsg(address.ToString());
// Listening loop
while (true)
{
byte[] buffer = new byte[bufferSize];
try
{
// Recieve any incoming ICMPv4 packets
EndPoint remoteEndPoint = new IPEndPoint(IPAddress.Any, 0);
int bytesRead = listeningSocket.ReceiveFrom(buffer, ref remoteEndPoint);
ICMP response = new ICMP(buffer, bytesRead);
// Display captured packet
ConsoleDisplay.CapturedPacket(address.ToString(), response, remoteEndPoint.ToString(), DateTime.Now.ToString("h:mm:ss.ff tt"), bytesRead);
// Store results
results.CountPacketType(response.Type);
results.IncrementReceivedPackets();
}
catch (OperationCanceledException)
{
}
catch (SocketException)
{
ConsoleDisplay.Error("Could not read packet from socket");
}
}
listeningSocket.Close();
}
public static void Start(CancellationToken cancellationToken)
{
IPAddress localAddress = null;
Socket listeningSocket = null;
PingResults results = new PingResults();
int bufferSize = 4096;
// Find local address
localAddress = IPAddress.Parse(Lookup.GetLocalAddress());
try {
// Create listener socket
listeningSocket = new Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.Icmp);
listeningSocket.Bind(new IPEndPoint(localAddress, 0));
listeningSocket.IOControl(IOControlCode.ReceiveAll, new byte[] { 1, 0, 0, 0 }, new byte[] { 1, 0, 0, 0 }); // Set SIO_RCVALL flag to socket IO control
listeningSocket.ReceiveBufferSize = bufferSize;
Display.ListenIntroMsg(localAddress.ToString());
// Listening loop
while (!cancellationToken.IsCancellationRequested)
{
byte[] buffer = new byte[bufferSize];
// Recieve any incoming ICMPv4 packets
EndPoint remoteEndPoint = new IPEndPoint(IPAddress.Any, 0);
int bytesRead = Helper.RunWithCancellationToken(() => listeningSocket.ReceiveFrom(buffer, ref remoteEndPoint), cancellationToken);
ICMP response = new ICMP(buffer, bytesRead);
// Display captured packet
Display.CapturedPacket(response, remoteEndPoint.ToString(), DateTime.Now.ToString("h:mm:ss.ff tt"), bytesRead);
// Store results
results.CountPacketType(response.Type);
results.Received++;
}
}
catch (OperationCanceledException) {
}
catch (SocketException) {
Display.Error("Could not read packet from socket");
}
catch (Exception e) {
Display.Error($"General exception occured while trying to create listening socket (Exception: {e.GetType().ToString().Split('.').Last()}");
}
// Clean up
listeningSocket.Close();
// TODO: Implement ListenResults method
//Display.ListenResults(results);
}
public static void Start(string address, CancellationToken cancellationToken)
{
PingAttributes attrs = new PingAttributes();
RateLimiter displayUpdateLimiter = new RateLimiter(TimeSpan.FromMilliseconds(500));
ulong previousPingsSent = 0;
Ping p = new Ping(cancellationToken);
// Verify address
attrs.Address = Lookup.QueryDNS(address, AddressFamily.InterNetwork);;
// Setup ping attributes
attrs.Interval = 0;
attrs.Timeout = 100;
attrs.Message = "R U Dead Yet?";
// TODO: Option for 'heavy' flood with bloated packet sizes
attrs.Continous = true;
// Disable output for faster speeds
Display.ShowOutput = false;
// This callback will run after each ping iteration
void ResultsUpdateCallback(PingResults r)
{
// Make sure we're not updating the display too frequently
if (!displayUpdateLimiter.RequestRun())
{
return;
}
// Calculate pings per second
double pingsPerSecond = 0;
if (displayUpdateLimiter.ElapsedSinceLastRun != TimeSpan.Zero)
{
pingsPerSecond = (r.Sent - previousPingsSent) / displayUpdateLimiter.ElapsedSinceLastRun.TotalSeconds;
}
previousPingsSent = r.Sent;
// Update results text
Display.FloodProgress(r.Sent, (ulong)Math.Round(pingsPerSecond), address);
}
// Start flooding
PingResults results = p.Send(attrs, ResultsUpdateCallback);
// Display results
Display.ShowOutput = true;
Display.PingResults(attrs, results);
}
/// <summary>
/// Update graph text labels
/// </summary>
/// <param name="results"></param>
private void UpdateLabels(PingResults results)
{
// save cursor location
int cursorPositionX = Console.CursorLeft;
int cursorPositionY = Console.CursorTop;
String blankLabel = new String(' ', 6);
// Update sent label
Console.SetCursorPosition(sentLabelX, sentLabelY);
// Clear label first
Console.Write(blankLabel);
// Move cursor back
Console.CursorLeft = Console.CursorLeft - 6;
// Write label value
Console.Write(results.Sent);
// Update recieve label
Console.SetCursorPosition(recLabelX, recLabelY);
Console.Write(blankLabel);
Console.CursorLeft = Console.CursorLeft - 6;
Console.Write(results.Received);
// Update fail label
Console.SetCursorPosition(failLabelX, failLabelY);
Console.Write(blankLabel);
Console.CursorLeft = Console.CursorLeft - 6;
Console.Write(results.Lost);
// Update RTT label
Console.SetCursorPosition(rttLabelX, rttLabelY);
Console.Write(blankLabel);
Console.CursorLeft = Console.CursorLeft - 6;
Console.Write("{0:0.0}ms", results.CurTime);
// Update time label
Console.SetCursorPosition(timeLabelX, timeLabelY);
Console.Write(blankLabel + " ");
Console.CursorLeft = Console.CursorLeft - 14;
Console.Write("{0:hh\\:mm\\:ss}", results.TotalRunTime);
// Reset cursor to starting position
Console.SetCursorPosition(cursorPositionX, cursorPositionY);
}
/// <summary>
/// Update graph legend text labels
/// </summary>
/// <param name="results"></param>
private void UpdateLegend(PingResults results)
{
// save cursor location
int cursorPositionX = Console.CursorLeft;
int cursorPositionY = Console.CursorTop;
string blankLabel = new string(' ', 8);
// Update sent label
Console.SetCursorPosition(m_SentLabelX, m_SentLabelY);
// Clear label first
Console.Write(blankLabel);
// Move cursor back
Console.CursorLeft = Console.CursorLeft - 8;
// Write label value
Console.Write(results.Sent);
// Update recieve label
Console.SetCursorPosition(m_RecvLabelX, m_RecvLabelY);
Console.Write(blankLabel);
Console.CursorLeft = Console.CursorLeft - 8;
Console.Write(results.Received);
// Update fail label
Console.SetCursorPosition(m_FailLabelX, m_FailLabelY);
Console.Write(blankLabel);
Console.CursorLeft = Console.CursorLeft - 8;
Console.Write(results.Lost);
// Update RTT label
Console.SetCursorPosition(m_RttLabelX, m_RttLabelY);
Console.Write(blankLabel);
Console.CursorLeft = Console.CursorLeft - 8;
Console.Write("{0:0.0}ms", results.CurrTime);
// Update time label
Console.SetCursorPosition(m_TimeLabelX, m_TimeLabelY);
Console.Write(blankLabel + " ");
Console.CursorLeft = Console.CursorLeft - 16;
Console.Write("{0:hh\\:mm\\:ss}", results.TotalRunTime);
// Reset cursor to starting position
Console.SetCursorPosition(cursorPositionX, cursorPositionY);
}
// This callback will run after each ping iteration
public void OnResultsUpdate(PingResults r)
{
// Make sure we're not updating the display too frequently
if (!_displayUpdateLimiter.RequestRun())
{
return;
}
// Calculate pings per second
double pingsPerSecond = 0;
if (_displayUpdateLimiter.ElapsedSinceLastRun != TimeSpan.Zero)
{
pingsPerSecond = (r.Sent - _previousPingsSent) / _displayUpdateLimiter.ElapsedSinceLastRun.TotalSeconds;
}
_previousPingsSent = r.Sent;
// Update results text
ConsoleDisplay.FloodProgress(r.Sent, (ulong)Math.Round(pingsPerSecond), _address);
}
// This callback will run after each ping iteration
private static void ResultsUpdateCallback(PingResults r)
{
// Make sure we're not updating the display too frequently
if (!displayUpdateLimiter.RequestRun())
{
return;
}
// Calculate pings per second
double pingsPerSecond = 0;
if (displayUpdateLimiter.ElapsedSinceLastRun != TimeSpan.Zero)
{
pingsPerSecond = (r.Sent - previousPingsSent) / displayUpdateLimiter.ElapsedSinceLastRun.TotalSeconds;
}
previousPingsSent = r.Sent;
// Update results text
Display.FloodProgress(r.Sent, (ulong)Math.Round(pingsPerSecond), m_Address);
}
/// <summary>
/// Displays and updates results of an ICMP flood
/// </summary>
/// <param name="results"></param>
public static void FloodProgress(PingResults results, string target)
{
// Check if labels have already been drawn
if (sentPos.Left > 0)
{
// Store original cursor position
CursorPosition originalPos = new CursorPosition(Console.CursorLeft, Console.CursorTop);
Console.CursorVisible = false;
// Update labels
Console.SetCursorPosition(sentPos.Left, sentPos.Top);
Console.Write(results.Sent);
Console.SetCursorPosition(ppsPos.Left, ppsPos.Top);
Console.Write(" "); // Blank first
Console.SetCursorPosition(ppsPos.Left, ppsPos.Top);
Console.Write(results.Sent - sentPings);
// Reset to original cursor position
Console.SetCursorPosition(originalPos.Left, originalPos.Top);
Console.CursorVisible = true;
}
else
{
// Draw labels
Console.WriteLine(FLOOD_INTO_TXT, target);
Console.Write(FLOOD_SEND_TXT);
sentPos.Left = Console.CursorLeft;
sentPos.Top = Console.CursorTop;
Console.WriteLine("0");
Console.Write(FLOOD_PPS_TXT);
ppsPos.Left = Console.CursorLeft;
ppsPos.Top = Console.CursorTop;
Console.WriteLine();
Console.WriteLine(FLOOD_EXIT_TXT);
}
sentPings = results.Sent;
}
internal void OnFinish(PingResults results)
{
_logFile.Append($"[{_destinationAddress}] " +
$"[{results.EndTime.ToString(DATETIME_STRING_FORMAT)}] " +
$"[FINISH] ellapsed={results.TotalRunTime} start_time={results.StartTime} ");
_logFile.Append($"[{_destinationAddress}] " +
$"[{results.EndTime.ToString(DATETIME_STRING_FORMAT)}] " +
$"[STATISTICS] [PINGS] " +
$"sent={results.Sent} " +
$"received={results.Received} " +
$"lost={results.Lost} ");
_logFile.Append($"[{_destinationAddress}] " +
$"[{results.EndTime.ToString(DATETIME_STRING_FORMAT)}] " +
$"[STATISTICS] [PACKETS] " +
$"good={results.GoodPackets} " +
$"error={results.ErrorPackets} " +
$"other={results.OtherPackets} ");
_logFile.Append($"[{_destinationAddress}] " +
$"[{results.EndTime.ToString(DATETIME_STRING_FORMAT)}] " +
$"[STATISTICS] [TIME] " +
$"max={results.MaxTime} " +
$"min={results.MinTime} " +
$"avg={results.AvgTime} ");
}
/// <summary>
/// Displays statistics for a ping object
/// </summary>
/// <param name="ping"> </param>
public static void PingResults(PingAttributes attrs, PingResults results)
{
if (!Configuration.ShowOutput || !Configuration.ShowSummary)
{
return;
}
ResetColor();
// Display stats
double percent = (double)results.Lost / results.Sent;
percent = Math.Round(percent * 100, 2);
Console.WriteLine();
Console.WriteLine(ProgramStrings.RESULTS_HEADER, attrs.ResolvedAddress);
// General: Sent [ 0 ], Recieved [ 0 ], Lost [ 0 ] (0% loss)
Console.Write(ProgramStrings.RESULTS_GENERAL_TAG + ProgramStrings.RESULTS_SENT_TXT);
if (Configuration.NoColor)
{
Console.Write(ProgramStrings.RESULTS_INFO_BOX, results.Sent);
}
else
{
Console.ForegroundColor = ConsoleColor.Yellow;
Console.Write(ProgramStrings.RESULTS_INFO_BOX, results.Sent);
ResetColor();
}
Console.Write(ProgramStrings.RESULTS_RECV_TXT);
if (Configuration.NoColor)
{
Console.Write(ProgramStrings.RESULTS_INFO_BOX, results.Received);
}
else
{
Console.ForegroundColor = ConsoleColor.Green;
Console.Write(ProgramStrings.RESULTS_INFO_BOX, results.Received);
ResetColor();
}
Console.Write(ProgramStrings.RESULTS_LOST_TXT);
if (Configuration.NoColor)
{
Console.Write(ProgramStrings.RESULTS_INFO_BOX, results.Lost);
}
else
{
Console.ForegroundColor = ConsoleColor.Red;
Console.Write(ProgramStrings.RESULTS_INFO_BOX, results.Lost);
ResetColor();
}
Console.WriteLine(ProgramStrings.RESULTS_PERCENT_LOST_TXT, percent);
// Times: Min [ 0ms ] Max [ 0ms ] Avg [ 0ms ]
Console.WriteLine(ProgramStrings.RESULTS_TIMES_TAG + ProgramStrings.RESULTS_TIME_TXT, results.MinTime, results.MaxTime, results.AvgTime);
// Types: Good [ 0 ], Errors [ 0 ], Unknown [ 0 ]
Console.Write(ProgramStrings.RESULTS_TYPES_TAG);
Console.Write(ProgramStrings.RESULTS_PKT_GOOD);
if (Configuration.NoColor)
{
Console.Write(ProgramStrings.RESULTS_INFO_BOX, results.GoodPackets);
}
else
{
Console.ForegroundColor = ConsoleColor.Green;
Console.Write(ProgramStrings.RESULTS_INFO_BOX, results.GoodPackets);
ResetColor();
}
Console.Write(ProgramStrings.RESULTS_PKT_ERR);
if (Configuration.NoColor)
{
Console.Write(ProgramStrings.RESULTS_INFO_BOX, results.GoodPackets);
}
else
{
Console.ForegroundColor = ConsoleColor.Red;
Console.Write(ProgramStrings.RESULTS_INFO_BOX, results.ErrorPackets);
ResetColor();
}
Console.Write(ProgramStrings.RESULTS_PKT_UKN);
if (Configuration.NoColor)
{
Console.Write(ProgramStrings.RESULTS_INFO_BOX, results.GoodPackets);
}
else
{
Console.ForegroundColor = ConsoleColor.Cyan;
Console.WriteLine(ProgramStrings.RESULTS_INFO_BOX, results.OtherPackets);
ResetColor();
}
// Started at: 0:00:00 (local time)
Console.WriteLine(ProgramStrings.RESULTS_START_TIME_TXT, results.StartTime);
//Runtime: hh:mm:ss.f
Console.WriteLine(ProgramStrings.RESULTS_RUNTIME_TXT, results.TotalRunTime);
Console.WriteLine();
if (results.HasOverflowed)
{
Console.WriteLine(ProgramStrings.RESULTS_OVERFLOW_MSG);
Console.WriteLine();
}
if (Configuration.RequireInput)
{
Helper.WaitForUserInput();
}
}
private PingResults SendICMP(PingAttributes attrs, Action <PingResults> resultsUpdateCallback = null)
{
PingResults results = new PingResults();
ICMP packet = new ICMP();
byte[] receiveBuffer = new byte[attrs.RecieveBufferSize]; // Ipv4Header.length + IcmpHeader.length + attrs.recievebuffersize
int bytesRead, packetSize;
// Convert to IPAddress
IPAddress ipAddr = IPAddress.Parse(attrs.Address);
// Setup endpoint
IPEndPoint iep = new IPEndPoint(ipAddr, 0);
// Setup raw socket
Socket sock = CreateRawSocket(ipAddr.AddressFamily);
// Helper function to set receive timeout (only if it's changing)
int appliedReceiveTimeout = 0;
void SetReceiveTimeout(int receiveTimeout)
{
if (receiveTimeout != appliedReceiveTimeout)
{
sock.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, receiveTimeout);
appliedReceiveTimeout = receiveTimeout;
}
}
// Set socket options
sock.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.IpTimeToLive, attrs.Ttl);
sock.DontFragment = attrs.DontFragment;
sock.ReceiveBufferSize = attrs.RecieveBufferSize;
// Create packet message payload
byte[] payload;
if (attrs.Size != -1)
{
payload = Helper.GenerateByteArray(attrs.Size);
}
else
{
payload = Encoding.ASCII.GetBytes(attrs.Message);
}
// Construct our ICMP packet
packet.Type = attrs.Type;
packet.Code = attrs.Code;
Buffer.BlockCopy(BitConverter.GetBytes(m_SessionId), 0, packet.Message, 0, 2); // Add identifier to ICMP message
Buffer.BlockCopy(payload, 0, packet.Message, 4, payload.Length); // Add text into ICMP message
packet.MessageSize = payload.Length + 4;
packetSize = packet.MessageSize + 4;
// Sending loop
for (int index = 1; attrs.Continous || index <= attrs.Count; index++)
{
if (index != 1)
{
// Wait for set interval before sending again or cancel if requested
if (m_CancellationToken.WaitHandle.WaitOne(attrs.Interval))
{
break;
}
// Generate random interval when RandomTimings flag is set
if (attrs.RandomTiming)
{
attrs.Interval = Helper.RandomInt(5000, 100000);
}
}
// Include sequence number in ping message
ushort sequenceNum = (ushort)index;
Buffer.BlockCopy(BitConverter.GetBytes(sequenceNum), 0, packet.Message, 2, 2);
// Fill ICMP message field
if (attrs.RandomMsg)
{
payload = Encoding.ASCII.GetBytes(Helper.RandomString());
Buffer.BlockCopy(payload, 0, packet.Message, 4, payload.Length);
}
// Update packet checksum
packet.Checksum = 0;
UInt16 chksm = packet.GetChecksum();
packet.Checksum = chksm;
try {
// Show request packet
if (Display.ShowRequests)
{
Display.RequestPacket(packet, Display.UseInputtedAddress | Display.UseResolvedAddress ? attrs.InputtedAddress : attrs.Address, index);
}
// If there were extra responses from a prior request, ignore them
while (sock.Available != 0)
{
bytesRead = sock.Receive(receiveBuffer);
}
// Send ping request
sock.SendTo(packet.GetBytes(), packetSize, SocketFlags.None, iep); // Packet size = message field + 4 header bytes
long requestTimestamp = Stopwatch.GetTimestamp();
try { results.Sent++; }
catch (OverflowException) { results.HasOverflowed = true; }
if (m_Debug)
{
// Induce random wait for debugging
Random rnd = new Random();
Thread.Sleep(scale);//rnd.Next(scale));//1500));
//Thread.Sleep(rnd.Next(100));
if (inverting)
{
scale -= 5;
}
else
{
scale += 5;
}
if (scale > 1100)
{
inverting = true;
}
else if (scale == 10)
{
inverting = false;
}
//if (rnd.Next(20) == 1) { throw new SocketException(); }
}
ICMP response;
EndPoint responseEP = iep;
TimeSpan replyTime = TimeSpan.Zero;
do
{
// Cancel if requested
m_CancellationToken.ThrowIfCancellationRequested();
// Set receive timeout, limited to 250ms so we don't block very long without checking for
// cancellation. If the requested ping timeout is longer, we will wait some more in subsequent
// loop iterations until the requested ping timeout is reached.
int remainingTimeout = (int)Math.Ceiling(attrs.Timeout - replyTime.TotalMilliseconds);
if (remainingTimeout <= 0)
{
throw new SocketException();
}
SetReceiveTimeout(Math.Min(remainingTimeout, 250));
// Wait for response
try {
bytesRead = sock.ReceiveFrom(receiveBuffer, ref responseEP);
} catch (SocketException) {
bytesRead = 0;
}
replyTime = new TimeSpan(Helper.StopwatchToTimeSpanTicks(Stopwatch.GetTimestamp() - requestTimestamp));
if (bytesRead == 0)
{
response = null;
}
else
{
// Store reply packet
response = new ICMP(receiveBuffer, bytesRead);
// If we sent an echo and receive a response with a different identifier or sequence
// number, ignore it (it could correspond to an older request that timed out)
if (packet.Type == 8 && response.Type == 0)
{
ushort responseSessionId = BitConverter.ToUInt16(response.Message, 0);
ushort responseSequenceNum = BitConverter.ToUInt16(response.Message, 2);
if (responseSessionId != m_SessionId || responseSequenceNum != sequenceNum)
{
response = null;
}
}
}
} while (response == null);
// Display reply packet
if (Display.ShowReplies)
{
Display.ReplyPacket(response, Display.UseInputtedAddress | Display.UseResolvedAddress ? attrs.InputtedAddress : responseEP.ToString(), index, replyTime, bytesRead);
}
// Store response info
try { results.Received++; }
catch (OverflowException) { results.HasOverflowed = true; }
results.CountPacketType(response.Type);
results.SaveResponseTime(replyTime.TotalMilliseconds);
if (attrs.BeepLevel == 2)
{
try { Console.Beep(); }
catch (Exception) { } // Silently continue if Console.Beep errors
}
} catch (IOException) {
if (Display.ShowOutput)
{
Display.Error("General transmit error");
}
results.SaveResponseTime(-1);
try { results.Lost++; }
catch (OverflowException) { results.HasOverflowed = true; }
} catch (SocketException) {
Display.Timeout(index);
if (attrs.BeepLevel == 1)
{
try { Console.Beep(); }
catch (Exception) { results.HasOverflowed = true; }
}
results.SaveResponseTime(-1);
try { results.Lost++; }
catch (OverflowException) { results.HasOverflowed = true; }
} catch (OperationCanceledException) {
results.ScanWasCanceled = true;
break;
} catch (Exception) {
if (Display.ShowOutput)
{
Display.Error("General error occured");
}
results.SaveResponseTime(-1);
try { results.Lost++; }
catch (OverflowException) { results.HasOverflowed = true; }
}
// Run callback (if provided) to notify of updated results
resultsUpdateCallback?.Invoke(results);
}
// Clean up
sock.Close();
return(results);
}
/// <summary>
/// Main entry point of PowerPing
/// Parses arguments and runs operations
/// </summary>
/// <param name="args">Program arguments</param>
static void Main(string[] args)
{
// User inputted attributes
PingAttributes inputtedAttributes = new PingAttributes();
// Setup console
Display.DefaultForegroundColor = Console.ForegroundColor;
Display.DefaultBackgroundColor = Console.BackgroundColor;
// Show current version info
//Display.Version();
// Check if no arguments
if (args.Length == 0)
{
Display.Help();
Helper.WaitForUserInput();
return;
}
// Parse command line arguments
if (!CommandLine.Parse(args, ref inputtedAttributes))
{
Helper.ErrorAndExit("Problem parsing arguments, use \"PowerPing /help\" or \"PowerPing /?\" for help.");
}
// Find address/host in arguments
if (inputtedAttributes.Operation != PingOperation.Whoami &&
inputtedAttributes.Operation != PingOperation.Listen)
{
if (!CommandLine.FindAddress(args, ref inputtedAttributes))
{
Helper.ErrorAndExit("Could not find correctly formatted address, please check and try again");
}
}
// Perform DNS lookup on inputted address
// inputtedAttributes.ResolvedAddress = Lookup.QueryDNS(inputtedAttributes.InputtedAddress, inputtedAttributes.UseICMPv4 ? AddressFamily.InterNetwork : AddressFamily.InterNetworkV6);
// Add Control C event handler
if (inputtedAttributes.Operation != PingOperation.Whoami &&
inputtedAttributes.Operation != PingOperation.Location &&
inputtedAttributes.Operation != PingOperation.Whois)
{
Console.CancelKeyPress += new ConsoleCancelEventHandler(ExitHandler);
}
// Select correct function using opMode
Ping p;
Graph g;
switch (inputtedAttributes.Operation)
{
case PingOperation.Listen:
// If we find an address then pass it to listen, otherwise start it without one
if (CommandLine.FindAddress(args, ref inputtedAttributes))
{
Listen.Start(m_CancellationTokenSource.Token, inputtedAttributes.InputtedAddress);
}
else
{
Listen.Start(m_CancellationTokenSource.Token);
}
break;
case PingOperation.Location:
Console.WriteLine(Lookup.GetAddressLocationInfo(inputtedAttributes.InputtedAddress, false));
Helper.WaitForUserInput();
break;
case PingOperation.Whoami:
Console.WriteLine(Lookup.GetAddressLocationInfo("", true));
Helper.WaitForUserInput();
break;
case PingOperation.Whois:
Lookup.QueryWhoIs(inputtedAttributes.InputtedAddress);
break;
case PingOperation.Graph:
g = new Graph(inputtedAttributes.InputtedAddress, m_CancellationTokenSource.Token);
g.Start();
break;
case PingOperation.CompactGraph:
g = new Graph(inputtedAttributes.InputtedAddress, m_CancellationTokenSource.Token);
g.CompactGraph = true;
g.Start();
break;
case PingOperation.Flood:
Flood.Start(inputtedAttributes.InputtedAddress, m_CancellationTokenSource.Token);
break;
case PingOperation.Scan:
Scan.Start(inputtedAttributes.InputtedAddress, m_CancellationTokenSource.Token);
break;
case PingOperation.Normal:
// Send ping normally
p = new Ping(inputtedAttributes, m_CancellationTokenSource.Token);
PingResults results = p.Send();
Display.PingResults(inputtedAttributes, results);
break;
default:
Helper.ErrorAndExit("Could not determine ping operation");
break;
}
// Reset console colour
Display.ResetColor();
try { Console.CursorVisible = true; } catch (Exception) { }
}
/// <summary>
/// Displays statistics for a ping object
/// </summary>
/// <param name="ping"> </param>
public static void PingResults(PingAttributes attrs, PingResults results)
{
if (!Display.ShowOutput || !Display.ShowSummary)
{
return;
}
ResetColor();
// Display stats
double percent = (double)results.Lost / results.Sent;
percent = Math.Round(percent * 100, 2);
Console.WriteLine();
Console.WriteLine(RESULTS_HEADER, attrs.ResolvedAddress);
// General: Sent [ 0 ], Recieved [ 0 ], Lost [ 0 ] (0% loss)
Console.Write(RESULTS_GENERAL_TAG + RESULTS_SENT_TXT);
if (NoColor)
{
Console.Write(RESULTS_INFO_BOX, results.Sent);
}
else
{
Console.ForegroundColor = ConsoleColor.Yellow;
Console.Write(RESULTS_INFO_BOX, results.Sent);
ResetColor();
}
Console.Write(RESULTS_RECV_TXT);
if (NoColor)
{
Console.Write(RESULTS_INFO_BOX, results.Received);
}
else
{
Console.ForegroundColor = ConsoleColor.Green;
Console.Write(RESULTS_INFO_BOX, results.Received);
ResetColor();
}
Console.Write(RESULTS_LOST_TXT);
if (NoColor)
{
Console.Write(RESULTS_INFO_BOX, results.Lost);
}
else
{
Console.ForegroundColor = ConsoleColor.Red;
Console.Write(RESULTS_INFO_BOX, results.Lost);
ResetColor();
}
Console.WriteLine(RESULTS_PERCENT_LOST_TXT, percent);
// Times: Min [ 0ms ] Max [ 0ms ] Avg [ 0ms ]
Console.WriteLine(RESULTS_TIMES_TAG + RESULTS_TIME_TXT, results.MinTime, results.MaxTime, results.AvgTime);
// Types: Good [ 0 ], Errors [ 0 ], Unknown [ 0 ]
Console.Write(RESULTS_TYPES_TAG);
Console.Write(RESULTS_PKT_GOOD);
if (NoColor)
{
Console.Write(RESULTS_INFO_BOX, results.GoodPackets);
}
else
{
Console.ForegroundColor = ConsoleColor.Green;
Console.Write(RESULTS_INFO_BOX, results.GoodPackets);
ResetColor();
}
Console.Write(RESULTS_PKT_ERR);
if (NoColor)
{
Console.Write(RESULTS_INFO_BOX, results.GoodPackets);
}
else
{
Console.ForegroundColor = ConsoleColor.Red;
Console.Write(RESULTS_INFO_BOX, results.ErrorPackets);
ResetColor();
}
Console.Write(RESULTS_PKT_UKN);
if (NoColor)
{
Console.Write(RESULTS_INFO_BOX, results.GoodPackets);
}
else
{
Console.ForegroundColor = ConsoleColor.Cyan;
Console.WriteLine(RESULTS_INFO_BOX, results.OtherPackets);
ResetColor();
}
// Started at: 0:00:00 (local time)
Console.WriteLine(RESULTS_START_TIME_TXT, results.StartTime);
//Runtime: hh:mm:ss.f
Console.WriteLine(RESULTS_RUNTIME_TXT, results.TotalRunTime);
Console.WriteLine();
if (results.HasOverflowed)
{
Console.WriteLine(RESULTS_OVERFLOW_MSG);
Console.WriteLine();
}
if (Properties.Settings.Default.ShownInputPrompt == false)
{
Display.Message(
"(NOTE: To stop PowerPing from closing too quickly (when opening in a new Administrator console) PowerPing will\n" +
"prompt for user input upon completion BY DEFAULT, you can disable this PERMENANTLY using the --noinput argument next time)\n",
ConsoleColor.Cyan);
Properties.Settings.Default.ShownInputPrompt = true;
Properties.Settings.Default.Save();
}
Helper.WaitForUserInput();
}
public static void ListenResults(PingResults results)
{
throw new NotImplementedException();
}
/// <summary>
/// Update graph legend text labels
/// </summary>
/// <param name="results"></param>
private void UpdateLegend(PingResults results)
{
// save cursor location
int cursorPositionX = Console.CursorLeft;
int cursorPositionY = Console.CursorTop;
string blankLabel = new string(' ', 8);
// Update sent label
Console.SetCursorPosition(m_SentLabelX, m_SentLabelY);
// Clear label first
Console.Write(blankLabel);
// Move cursor back
Console.CursorLeft = Console.CursorLeft - 8;
// Write label value
Console.Write(results.Sent);
// Update recieve label
Console.SetCursorPosition(m_RecvLabelX, m_RecvLabelY);
Console.Write(blankLabel);
Console.CursorLeft = Console.CursorLeft - 8;
Console.Write(results.Received);
// Update average label
Console.SetCursorPosition(m_AvgLabelX, m_AvgLabelY);
Console.Write(blankLabel);
Console.CursorLeft = Console.CursorLeft - 8;
double r = Math.Round(results.AvgTime, 1);
if (lastAvg < r)
{
Console.ForegroundColor = ConsoleColor.DarkRed;
Console.Write("+");
if (results.CurrTime - lastRes > 20)
{
Console.Write("+");
}
}
else if (lastAvg > r)
{
Console.ForegroundColor = ConsoleColor.DarkGreen;
Console.Write("-");
if (lastRes - results.CurrTime > 20)
{
Console.Write("-");
}
}
else
{
Console.ForegroundColor = ConsoleColor.DarkYellow;
Console.Write("~");
}
lastAvg = r;
lastRes = results.CurrTime;
Console.ResetColor();
Console.Write("{0:0.0}ms", results.AvgTime);
// Update fail label
Console.SetCursorPosition(m_FailLabelX, m_FailLabelY);
Console.Write(blankLabel);
Console.CursorLeft = Console.CursorLeft - 8;
Console.Write(results.Lost);
// Update RTT label
Console.SetCursorPosition(m_RttLabelX, m_RttLabelY);
Console.Write(blankLabel);
Console.CursorLeft = Console.CursorLeft - 8;
Console.Write("{0:0.0}ms", results.CurrTime);
// Update time label
Console.SetCursorPosition(m_TimeLabelX, m_TimeLabelY);
Console.Write(blankLabel + " ");
Console.CursorLeft = Console.CursorLeft - 16;
Console.Write("{0:hh\\:mm\\:ss}", results.TotalRunTime);
// Reset cursor to starting position
Console.SetCursorPosition(cursorPositionX, cursorPositionY);
}
public static void Start(string range, CancellationToken cancellationToken)
{
List <string> addresses = new List <string>();
List <HostInformation> activeHosts = new List <HostInformation>();
Stopwatch timer = new Stopwatch();
// Get addresses to scan from range
addresses = ParseRange(range);
// Setup addresses and threads
var splitAddresses = Helper.PartitionList(addresses, THREAD_COUNT);
Thread[] threads = new Thread[THREAD_COUNT];
object lockObject = new object();
int scanned = 0;
// Run the threads
timer.Start();
for (int i = 0; i < THREAD_COUNT; i++)
{
List <string> addrs = splitAddresses[i];
threads[i] = new Thread(() => {
PingAttributes attrs = new PingAttributes();
attrs.InputtedAddress = "127.0.0.1";
attrs.Timeout = 500;
attrs.Interval = 0;
attrs.Count = 1;
Ping ping = new Ping(attrs, cancellationToken);
try {
foreach (string host in addrs)
{
// Send ping
PingResults results = ping.Send(host);
if (results.ScanWasCanceled)
{
// Cancel was requested during scan
throw new OperationCanceledException();
}
Interlocked.Increment(ref scanned);
if (results.Lost == 0 && results.ErrorPackets != 1)
{
// If host is active, add to list
lock (lockObject) {
activeHosts.Add(new HostInformation {
Address = host,
HostName = "",
ResponseTime = results.CurrTime
});
}
}
}
} catch (OperationCanceledException) {
_cancelled = true;
}
});
threads[i].IsBackground = true;
threads[i].Start();
}
// Wait for all threads to exit
int lastSent = 0, pingsPerSecond = 0;
int lastSpeedCheck = 0;
while (threads.Where(x => x.IsAlive).ToList().Count > 0)
{
int count = 0;
lock (lockObject) {
count = activeHosts.Count;
}
if (lastSpeedCheck == 5)
{
pingsPerSecond = Math.Abs((scanned - lastSent));
lastSent = scanned;
lastSpeedCheck = 0;
}
ConsoleDisplay.ScanProgress(
scanned,
activeHosts.Count,
addresses.Count,
pingsPerSecond,
timer.Elapsed,
range);
lastSpeedCheck++;
Thread.Sleep(200);
}
// Display one last time so the bar actually completes
// (scan could have completed while the main thread was sleeping)
ConsoleDisplay.ScanProgress(
scanned,
activeHosts.Count,
addresses.Count,
pingsPerSecond,
timer.Elapsed,
range);
// Exit out when the operation has been canceled
if (_cancelled)
{
ConsoleDisplay.ScanResults(scanned, false, activeHosts);
return;
}
// Lookup host's name
Console.WriteLine();
Console.Write("Looking up host names, one sec...");
Console.CursorLeft = 0;
foreach (HostInformation host in activeHosts)
{
string hostName = Helper.RunWithCancellationToken(() => Lookup.QueryHost(host.Address), cancellationToken);
host.HostName = hostName;
}
Console.WriteLine(" ");
Console.CursorTop--;
ConsoleDisplay.ScanResults(scanned, !cancellationToken.IsCancellationRequested, activeHosts);
}
/// <summary>
/// Displays statistics for a ping object
/// </summary>
/// <param name="ping"> </param>
public static void PingResults(Ping ping)
{
// Load attributes
PingAttributes attrs = ping.Attributes;
PingResults results = ping.Results;
ResetColor();
// Display stats
double percent = (double)results.Lost / results.Sent;
percent = Math.Round(percent * 100, 2);
Console.WriteLine();
Console.WriteLine(RESULTS_HEADER, attrs.Address);
// General: Sent [ 0 ], Recieved [ 0 ], Lost [ 0 ] (0% loss)
Console.Write(RESULTS_GENERAL_TAG + RESULTS_SENT_TXT);
if (NoColor)
{
Console.Write(RESULTS_INFO_BOX, results.Sent);
}
else
{
Console.ForegroundColor = ConsoleColor.Yellow;
Console.Write(RESULTS_INFO_BOX, results.Sent);
ResetColor();
}
Console.Write(RESULTS_RECV_TXT);
if (NoColor)
{
Console.Write(RESULTS_INFO_BOX, results.Received);
}
else
{
Console.ForegroundColor = ConsoleColor.Green;
Console.Write(RESULTS_INFO_BOX, results.Received);
ResetColor();
}
Console.Write(RESULTS_LOST_TXT);
if (NoColor)
{
Console.Write(RESULTS_INFO_BOX, results.Lost);
}
else
{
Console.ForegroundColor = ConsoleColor.Red;
Console.Write(RESULTS_INFO_BOX, results.Lost);
ResetColor();
}
Console.WriteLine(RESULTS_PERCENT_LOST_TXT, percent);
// Times: Min [ 0ms ] Max [ 0ms ] Avg [ 0ms ]
Console.WriteLine(RESULTS_TIMES_TAG + RESULTS_TIME_TXT, results.MinTime, results.MaxTime, results.AvgTime);
// Types: Good [ 0 ], Errors [ 0 ], Unknown [ 0 ]
Console.Write(RESULTS_TYPES_TAG);
Console.Write(RESULTS_PKT_GOOD);
if (NoColor)
{
Console.Write(RESULTS_INFO_BOX, results.GoodPackets);
}
else
{
Console.ForegroundColor = ConsoleColor.Green;
Console.Write(RESULTS_INFO_BOX, results.GoodPackets);
ResetColor();
}
Console.Write(RESULTS_PKT_ERR);
if (NoColor)
{
Console.Write(RESULTS_INFO_BOX, results.GoodPackets);
}
else
{
Console.ForegroundColor = ConsoleColor.Red;
Console.Write(RESULTS_INFO_BOX, results.ErrorPackets);
ResetColor();
}
Console.Write(RESULTS_PKT_UKN);
if (NoColor)
{
Console.Write(RESULTS_INFO_BOX, results.GoodPackets);
}
else
{
Console.ForegroundColor = ConsoleColor.Cyan;
Console.WriteLine(RESULTS_INFO_BOX, results.OtherPackets);
ResetColor();
}
// Started at: 0:00:00 (local time)
Console.WriteLine(RESULTS_START_TIME_TXT, results.StartTime);
//Runtime: hh:mm:ss.f
Console.WriteLine(RESULTS_RUNTIME_TXT, results.TotalRunTime);
Console.WriteLine();
if (results.HasOverflowed)
{
Console.WriteLine(RESULTS_OVERFLOW_MSG);
Console.WriteLine();
}
if (!NoInput)
{
// Confirm to exit
PowerPing.Helper.Pause(true);
}
}
/// <summary>
/// Network scanning method.
///
/// Uses pings to scan a IP address range and identify hosts
/// that are active.
///
/// range should be in format 192.0.0.1-255, where - denotes the range
/// This can be specified at any octlet of the address (192.0.1-100.1.255)
/// </summary>
/// <param name="range">Range of addresses to scan</param>
public void Scan(string range, bool recursing = false)
{
List <string> scanList = new List <string>(); // List of addresses to scan
String[] ipSegments = range.Split('.');
PingResults results = new PingResults();
List <string> activeHosts = new List <string>();
List <double> activeHostTimes = new List <double>();
Stopwatch scanTimer = new Stopwatch();
int scanned = 0;
// Setup scan ping attributes
PingAttributes attrs = new PingAttributes();
attrs.Timeout = 500;
attrs.Interval = 0;
attrs.Count = 1;
Display.ShowOutput = false;
// Check format of address (for '-'s and disallow multipl '-'s in one segment)
if (!range.Contains("-"))
{
Display.Error("Scan - No range specified, must be specified in format: 192.168.1.1-254", true, true);
}
// Holds the ranges for each ip segment
int[] segLower = new int[4];
int[] segUpper = new int[4];
// Work out upper and lower ranges for each segment
try{
for (int y = 0; y < 4; y++)
{
string[] ranges = ipSegments[y].Split('-');
segLower[y] = Convert.ToInt16(ranges[0]);
segUpper[y] = (ranges.Length == 1) ? segLower[y] : Convert.ToInt16(ranges[1]);
}
} catch (FormatException) {
Display.Error("Scan - Incorrect format [" + range + "], must be specified in format: 192.168.1.1-254", true, true);
}
// Build list of addresses from ranges
for (int seg1 = segLower[0]; seg1 <= segUpper[0]; seg1++)
{
for (int seg2 = segLower[1]; seg2 <= segUpper[1]; seg2++)
{
for (int seg3 = segLower[2]; seg3 <= segUpper[2]; seg3++)
{
for (int seg4 = segLower[3]; seg4 <= segUpper[3]; seg4++)
{
scanList.Add(new IPAddress(new byte[] { (byte)seg1, (byte)seg2, (byte)seg3, (byte)seg4 }).ToString());
}
}
}
}
scanTimer.Start();
// Scan loop
foreach (string host in scanList)
{
// Update host
attrs.Address = host;
scanned++;
// Reset global results for accurate results
// (results need to be set globally while running for graph but need to be semi local for scan
// or results bleed through so active hosts can't be determined)
this.Results = new PingResults();
// Send ping
results = SendICMP(attrs);
Display.ScanProgress(scanned, activeHosts.Count, scanList.Count, scanTimer.Elapsed, range, attrs.Address);
if (results.Lost == 0 && results.ErrorPackets != 1)
{
// If host is active, add to list
activeHosts.Add(host);
activeHostTimes.Add(results.CurTime);
}
}
scanTimer.Stop();
PowerPing.Display.ScanResults(scanList.Count, activeHosts, activeHostTimes);
}
public static void Start(string range, CancellationToken cancellationToken)
{
Ping p = new Ping(cancellationToken);
List <string> addresses = new List <string>();
List <HostInformation> activeHosts = new List <HostInformation>();
Stopwatch timer = new Stopwatch();
int scanned = 0;
// Setup scan ping attributes
PingAttributes attrs = new PingAttributes();
attrs.Timeout = 500;
attrs.Interval = 0;
attrs.Count = 1;
Display.ShowOutput = false;
// Get addresses to scan from range
addresses = ParseRange(range);
// TODO: In order to speed this up we need the following steps:
/*
* 1) Divide the address list by the number of threads we will us
* 2) New thread method w/ mutable active hosts list
* 3) Some way of updating the UI (resultsUpdateCallback?)
*/
timer.Start();
try {
// Scan loop
foreach (string host in addresses)
{
// Update host
attrs.Address = host;
// Send ping
PingResults results = p.Send(attrs);
if (results.ScanWasCanceled)
{
// Cancel was requested during scan
throw new OperationCanceledException();
}
scanned++;
Display.ScanProgress(scanned, activeHosts.Count, addresses.Count, timer.Elapsed, range, attrs.Address);
if (results.Lost == 0 && results.ErrorPackets != 1)
{
// If host is active, add to list
activeHosts.Add(new HostInformation {
Address = host,
HostName = "",
ResponseTime = results.CurrTime
});
}
}
}
catch (OperationCanceledException) { }
// Lookup host's name
Console.WriteLine();
Console.Write("Looking up host names, one sec...");
Console.CursorLeft = 0;
foreach (HostInformation host in activeHosts)
{
string hostName = Helper.RunWithCancellationToken(() => Lookup.QueryHost(host.Address), cancellationToken);
host.HostName = hostName;
}
Console.WriteLine(" ");
Console.CursorTop--;
Display.ScanResults(scanned, !cancellationToken.IsCancellationRequested, activeHosts);
}