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Network Stuff (easy socket v3)

, 2 Jun 2005
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A class with event handlers for TCP, UDP or ICMP sockets; includes ping, traceroute, whois, ARP, and IPHelper functions and raw packets forging/ capturing.

Because of errors between VS 2002 and 2003, I've decided to put the two projects to solve resx and obsolete warning troubles.

Sample Image - networkstuff.jpg


This code contains a class for socket: ICMP, TCP, UDP, raw TCP, raw UDP, raw IP, and a class for IPHelper functions. All the classes for socket are made with the same view: provide handler for events like connected, closed, closed_by_remote_side, data_arrival, error ....

The sample project is included in beta version, it provides a graphical interface for Telnet, ping, traceroute, whois, packet capture, packet forging, scanning, viewing stats (IPHelper sample), sending ARP, DNS, wake and shutdown on LAN.

How to use

See the following sample for TCP:

easy_socket.tcp.Socket_Data clt;
clt=new easy_socket.tcp.Socket_Data();

// add events
clt.event_Socket_Data_Closed_by_Remote_Side+= new 
clt.event_Socket_Data_Connected_To_Remote_Host +=new 
clt.event_Socket_Data_DataArrival +=new 
// connect

// handlers
protected void 
    socket_closed_by_remote_side(easy_socket.tcp.Socket_Data sender, 
    EventArgs e)

  // handler code

protected void 
    socket_connected_to_remote_host(easy_socket.tcp.Socket_Data sender, 
    EventArgs e)
  // handler code

protected void socket_data_arrival(easy_socket.tcp.Socket_Data sender, 
                         easy_socket.tcp.EventArgs_ReceiveDataSocket e)
    string strdata=System.Text.Encoding.Default.GetString(e.buffer, 
                                                0, e.buffer_size );

protected void socket_error(easy_socket.tcp.Socket_Data sender, 
                         easy_socket.tcp.EventArgs_Exception e)
    string strerror=e.exception.Message;

As you can see, you can save a lot of time using these classes.


  • 28 Feb 05 - updated VS.NET 2003 source code.
  • 09 May 05
    • Began Telnet protocol implementation.
    • Interactive TCP/UDP added.
    • Some bug corrections.
  • 03 Jun 05
    • Stat graphs added.
    • Interface improvement.
    • Telnet horizontal tab bug removed.
    • More bug corrections.


This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

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About the Author

Comments and Discussions

GeneralRe: GPL... PinmemberIGx8929-Mar-05 6:59 
GeneralRe: GPL... Pinmemberrantanplanisback29-Mar-05 8:42 
GeneralRe: GPL... PinmemberIGx8929-Mar-05 10:28 
GeneralRe: GPL... Pinmemberpedrito6810-May-05 5:35 
GeneralRe: GPL... PinmemberRobert M. Bouwens9-May-05 19:58 
GeneralRe: GPL... PinmemberSean McCormack3-Jun-05 6:14 
GeneralRe: GPL... [modified] PinmemberRyan L. Schneider24-Jul-06 5:33 
GeneralTCP SYN SYN/ACK issues Pinmemberbanduraj15-Mar-05 8:56 
I have been trying to build a port scanner just to learn a bit more about tcp/ip and socket programming. I came across your code and it helped me speed up my development.
The problem I am having is that when I try and create a TCP connection to a remote client using either your tcp_header class or mine, when I send the SYN flag I get back a SYN flag. However, when looking at the data through something like Ethereal I can see that in fact a SYN/ACK is sent back. What could I be doing wrong??
GeneralRe: TCP SYN SYN/ACK issues Pinmemberrantanplanisback22-Mar-05 11:24 
GeneralSource code formatting Suggestion Pinmembermrbelles27-Feb-05 18:17 
GeneralRe: Source code formatting Suggestion Pinmembermrbelles27-Feb-05 18:31 
GeneralRe: Source code formatting Suggestion Pinsussjacquelin.potier3-Mar-05 10:32 
GeneralRe: Source code formatting Suggestion PinmemberUnruled Boy9-May-05 18:41 
GeneralGot 1 errors, 3 Warning Pinsussanonymous....29-Jan-05 3:40 
GeneralRuntime Exceptions Pinsussdfhgesart29-Jan-05 3:55 
GeneralRe: Runtime Exceptions Pinsussjacquelin.potier8-Feb-05 1:50 
GeneralRe: Got 1 errors, 3 Warning Pinsussjacquelin.potier5-Feb-05 5:36 
QuestionDid anyone got similar error ? Pinmemberscott_wu21-Dec-04 17:08 
GeneralTCPSniffer Pinmemberynik15-Oct-04 1:50 
GeneralRe: TCPSniffer PinsussAnonymous15-Oct-04 7:30 
GeneralMissing Resources Pinmemberkiddjoe11-Oct-04 6:00 
GeneralRe: Missing Resources Pinmemberrantanplanisback11-Oct-04 8:54 
GeneralRe: Missing Resources Pinmemberrantanplanisback12-Oct-04 8:48 
QuestionWarning CS0618. Can i fix it? PinmemberAngel Tsvetkov11-Oct-04 0:31 
AnswerRe: Warning CS0618. Can i fix it? Pinmemberrantanplanisback11-Oct-04 8:51 

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