Jump to content
Sign in to follow this  
funkey

Another TCP server (written with my socket_UDF)

Recommended Posts

Hello, I just made another TCP server. I will use the server for data collection and a lot of clients can get the data from TCP. I now use it for UDP broadcast some devices to get their IP's. You can also use it for chat's.

It is very low level, but so you have more options than with the pure AutoIt functions.

Just start the server in SciTE to see the console outputs. Then you can start up to 63 clients to talk to the server.

I hope you like it.

Server script:

#include "socket_UDF.au3"
;funkey 2013.06.21

_WSAStartup()

Global $iSocket
Global $iReturn
Global $iPort = 20500
Global $sIP_Connected
Global $iPort_Connected
Global $tBuffer = DllStructCreate("char buffer[512]")


$iSocket = _socket($AF_INET, $SOCK_STREAM, $IPPROTO_TCP)
ConsoleWrite("Listen Socket: " & $iSocket & @CRLF)

Global $tReUse = DllStructCreate("BOOLEAN reuse")
DllStructSetData($tReUse, "reuse", True) ; enable reusing the same port
$iReturn = _setsockopt($iSocket, $SOL_SOCKET, $SO_REUSEADDR, $tReUse) ; set reusing option for the port
If $iReturn Then
ConsoleWrite("SetSockOpt error setting reusing the same port!. Windows Sockets Error Codes: " & _WSAGetLastError() & @CRLF)
EndIf

$iReturn = _bind($iSocket, @IPAddress1, $iPort) ;local IP-Address and port to use
If $iReturn Then
ConsoleWrite("Bind error: " & $iReturn & @CRLF) ; 0 is OK
EndIf

$iReturn = _listen($iSocket, 1)
If $iReturn Then
ConsoleWrite("Listen error: " & $iReturn & @CRLF) ; 0 is OK
EndIf

Global $iNewSocket
Global $tReadFds = DllStructCreate($tagFd_set)
Global $tReadFds_Copy = DllStructCreate($tagFd_set)
_FD_ZERO($tReadFds)
_FD_SET($iSocket, $tReadFds)
Global $iSocketMax = $iSocket
Global $iSocketNow
Global $sDataRcv

While 1

DllCall('ntdll.dll', 'none', 'RtlMoveMemory', 'struct*', $tReadFds_Copy, 'struct*', $tReadFds, 'ULONG_PTR', DllStructGetSize($tReadFds))

$iReturn = _select($iSocketMax + 1, $tReadFds_Copy, 2000) ;timeout 2 seconds
If _FD_ISSET($iSocket, $tReadFds_Copy) Then
$iNewSocket = _accept($iSocket, $sIP_Connected, $iPort_Connected)
_FD_SET($iNewSocket, $tReadFds)
_FD_SHOW($tReadFds)
If $iNewSocket > $iSocketMax Then $iSocketMax = $iNewSocket
ConsoleWrite("New connected socket: " & $iNewSocket & @TAB & "IP: " & $sIP_Connected & @TAB & "Port: " & $iPort_Connected & @LF)
EndIf

For $i = 2 To DllStructGetData($tReadFds, "fd_count")
$iSocketNow = DllStructGetData($tReadFds, "fd_array", $i)
If _FD_ISSET($iSocketNow, $tReadFds_Copy) Then
DllCall('ntdll.dll', 'none', 'RtlZeroMemory', 'struct*', $tBuffer, 'ULONG_PTR', DllStructGetSize($tBuffer))
If _recv($iSocketNow, $tBuffer) = $SOCKET_ERROR Then
_closesocket($iSocketNow)
_FD_CLR($iSocketNow, $tReadFds)
Else
$sDataRcv = DllStructGetData($tBuffer, 1)
ConsoleWrite("Data received: " & $sDataRcv & @LF)
If $sDataRcv == "CloseServer!" Then
ExitLoop 2
EndIf
EndIf
EndIf
Next

WEnd

For $i = 1 To DllStructGetData($tReadFds, "fd_count")
_closesocket(DllStructGetData($tReadFds, "fd_array", $i))
Next

_WSACleanup()


Func _FD_SHOW(ByRef $tFd_set)
For $i = 1 To DllStructGetData($tFd_set, "fd_count")
ConsoleWrite($i & ":" & @TAB & DllStructGetData($tFd_set, "fd_array", $i) & @LF)
Next
EndFunc ;==>_FD_SHOW

socket_UDF and example.rar


Programming today is a race between software engineers striving to
build bigger and better idiot-proof programs, and the Universe
trying to produce bigger and better idiots.
So far, the Universe is winning.

Share this post


Link to post
Share on other sites

Hi funkey

nice,

thanks for sharing

....  I now use it for UDP broadcast some devices to get their IP's. ....

 

could you please post an example to achieve this?

thanks


small minds discuss people average minds discuss events great minds discuss ideas.... and use AutoIt....

Share this post


Link to post
Share on other sites

 

Hi funkey

 

nice,

thanks for sharing

 

 

could you please post an example to achieve this?

 

thanks

This depends on devices you have and is different for every kind.

I have scripts to list all 'Siemens Sentron devices' and another one to list all 'Moxa Serial Device Servers' in our network.


Programming today is a race between software engineers striving to
build bigger and better idiot-proof programs, and the Universe
trying to produce bigger and better idiots.
So far, the Universe is winning.

Share this post


Link to post
Share on other sites

so, there are specific broadcast for different devices?
isn't it there a general purpose broadcast?
I do not knows how that works.


small minds discuss people average minds discuss events great minds discuss ideas.... and use AutoIt....

Share this post


Link to post
Share on other sites

For example I send a few characters via UDP broadcast on a specified port (that's why I build that UDF - AutoIt does not support this, or this is buggy) to my network. Only devices that wait for information on that port and that know the characters send the requested information back.

But what information do you want to get from what devices?


Programming today is a race between software engineers striving to
build bigger and better idiot-proof programs, and the Universe
trying to produce bigger and better idiots.
So far, the Universe is winning.

Share this post


Link to post
Share on other sites

I do not know if it's possible, but i wonder if an unknown device that responds to a ping, can be asked to respond what type of device is himself, for example if it's a router or a network printer or something else?
or maybe is possible the opposite of this?.So that I can broadcast for specific devices types (network printers for example?) and get response from (all) that type of devices only?

Edited by PincoPanco

small minds discuss people average minds discuss events great minds discuss ideas.... and use AutoIt....

Share this post


Link to post
Share on other sites

If think, that is not possible for all devices, but for some devices you could get the MAC address from IP address and then look what company made the device (for example use http://wintelguy.com/index.pl to find this out). Here is a script to receive the MAC address via ARP request:

#include "socket_UDF.au3"

_WSAStartup()

Global $MAC = _SendARP(@IPAddress1)
ConsoleWrite("Local MAC address: " & $MAC & @LF)
Global $MAC = _SendARP("192.168.3.4")
ConsoleWrite("Remote MAC address: " & $MAC & @LF)

_WSACleanup()

Func _SendARP($DestIP)
Local $DestAddress = _inet_addr($DestIP)
Local $tMacAddr = DllStructCreate("BYTE[8]")
Local $aRet = DllCall("Iphlpapi.dll", "DWORD", "SendARP", "ULONG", $DestAddress, "ULONG", 0, "struct*", $tMacAddr, "ULONG*", 8)
Local $sMAC = ""
Switch $aRet[0]
Case 0
For $i = 1 To $aRet[4] - 1
$sMAC &= Hex(DllStructGetData($tMacAddr, 1, $i), 2) & "-"
Next
$sMAC &= Hex(DllStructGetData($tMacAddr, 1, $i), 2)
Return $sMAC
Case 31
Return "ERROR_GEN_FAILURE"
Case 87
Return "ERROR_INVALID_PARAMETER"
Case 1784
Return "ERROR_INVALID_USER_BUFFER"
Case 67
Return "ERROR_BAD_NET_NAME"
Case 1168
Return "ERROR_NOT_FOUND"
EndSwitch
EndFunc

Programming today is a race between software engineers striving to
build bigger and better idiot-proof programs, and the Universe
trying to produce bigger and better idiots.
So far, the Universe is winning.

Share this post


Link to post
Share on other sites

Ok, Thank You.


small minds discuss people average minds discuss events great minds discuss ideas.... and use AutoIt....

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

  • Recently Browsing   0 members

    No registered users viewing this page.

  • Similar Content

    • By tarretarretarre
      Version 2.x.x and 3.x.x has been moved to branch 3.x
      About Autoit-Socket-IO
      Autoit-Socket-IO is a event driven TCP/IP wrapper heavily inspired from Socket.IO with focus on user friendliness and long term sustainability.
      I constantly want to make this UDF faster and better, so if you have any suggestions or questions (beginner and advanced) Do not hesitate to ask them, I will gladly help!
      Key features
      Simple API 99% data-type serialization thanks to Autoit-Serialize Can easily be extended with your own functionality thanks to Autoit-Events "Educational" examples Data encryption thanks to _<Crypt.au3> Limitations
      Speed. This UDF will sacrifice some speed for convenience Getting started
      Download the script from AutoIt or pull it from the official github repo git@github.com:tarreislam/Autoit-Socket-IO.git and checkout the tag 4.0.0-beta Check out the documentaion Take a look in the examples/ folder Changelog
      To see changes from 3.x.x and 2.x.x please checkout the 3.x branch
      Version 4.0.0-beta (This update break scripts.)
      Code base fully rewritten with Autoit-Events and decoupled to improve code quality and reduce bloat. The new UDF is very different from 3.x.x so please checkout the UPGRADE guide to fully understand all changes Added new documentation documentaion Success stories
      Since December 2017-now I have used version 1.5.0 in an production environment for 150+ clients with great success, the only downtime is planned windows updates and power outages.
       
      Newest version (2020-09-15!)

       
      Older versions (Not supported anymore)
      Autoit-Socket-IO-1.0.0.zip Autoit-Socket-IO-1.1.0.zip Autoit-Socket-IO-1.3.0.zip Autoit-Socket-IO-1.4.0.zip Autoit-Socket-IO-1.5.0.zip
      Autoit-Socket-IO-2.0.0.zip
    • By tarretarretarre
      Version 2.x.x and 3.x.x has been moved to branch 3.x
      About Autoit-Socket-IO
      Autoit-Socket-IO is a event driven TCP/IP wrapper heavily inspired from Socket.IO with focus on user friendliness and long term sustainability.
      I constantly want to make this UDF faster and better, so if you have any suggestions or questions (beginner and advanced) Do not hesitate to ask them, I will gladly help!
      Key features
      Simple API 99% data-type serialization thanks to Autoit-Serialize Can easily be extended with your own functionality thanks to Autoit-Events "Educational" examples Data encryption thanks to _<Crypt.au3> Limitations
      Speed. This UDF will sacrifice some speed for convenience Read more in the official thread
    • By TheXman
      Purpose (from Microsoft's website)
      The HTTP Server API enables applications to communicate over HTTP without using Microsoft Internet Information Server (IIS). Applications can register to receive HTTP requests for particular URLs, receive HTTP requests, and send HTTP responses. The HTTP Server API includes SSL support so that applications can exchange data over secure HTTP connections without IIS.
      Description
      There have been several times in the past that I wanted to either retrieve information from one of my PCs or execute commands on one of my PCs, whether it was from across the world or sitting on my couch.  Since AutoIt is one of my favorite tools for automating just about anything on my PC, I looked for ways to make to make it happen.  Setting up a full blown IIS server seemed like overkill so I looked for lighter weight solutions.  I though about creating my own AutoIt UDP or TCP server but that just wasn't robust enough,  Then I found Microsoft's HTTP Server API and it looked very promising.  After doing a little research into the APIs, I found that it was flexible & robust enough to handle just about any of the tasks that I required now and in the future.  So a while back I decided to wrap the API functionality that I needed into an AutoIt UDF file to allow me to easily create the functionality I needed at the time.  It has come in very handy over the years.  Of course it wasn't all wrapped up with a nice little bow like it is now.  That only happened when I decided to share it with anyone else who could use it or learn from it.
      The example file that I included is a very granular example of the steps required to get a lightweight HTTP Server up and listening for GET requests.  The UDF is a wrapper for the Microsoft APIs.  That means to do anything over and above what I show in the example, one would probably have to have at least a general knowledge of APIs or the ability to figure out which APIs/functions to use, what structures and data is needed to be passed to them, and in what order.  However, the UDF gives a very solid foundation on which to build upon.  Of course, if anyone has questions about the UDF or how to implement any particular functionality, I would probably help to the extent that I could or point you in the right direction so that you can figure out how to implement your own solution.
      The APIs included in the UDF are the ones that I needed in the past to do what I needed to do.  If any additional APIs need to be added to the UDF file, please make those suggestions in the related forum topic.
      Being that this is basically an AutoIt wrapper for the Microsoft API functions, there's no need to create AutoIt-specific documentation.  All of the UDF functions, structures, constants, and enumerations are named after their Microsoft API counterparts.  Therefore, you can refer to Microsoft's extensive documentation of their HTTP Server API.  As stated earlier, if there is one or more APIs that you find yourself needing for your particular solution, please suggest it in the related Example Scripts forum topic.
      Related Links
      Microsoft HTTP Server API - Start Page
      Microsoft HTTP Server API - API v2 Reference
      Microsoft HTTP Server API - Programming Model
    • By YogendraAtluri
      Hi, 
      I am new to AutoIT scripting and I am still learning. I am trying to communicate with a Labview application that acts like a server. it basically takes commands from the client. But for some commands, it also send back some data. 
      When i am sending commands from my script, i can see that the labview is getting them. But i am not able to get anything back. I tried different code pieces that are available online in the forum.
      This is the working piece of code which i been using to send data.
      #cs This module is used to establish tcp connection with lab view #ce #include <File.au3> Func SendCmd($cmd) TCPStartup() Local $IpAddress="192.168.10.101" Local $Port="5353" $Labview = TCPConnect($IpAddress,$Port) If @error Then ConsoleWrite('!--> TCPConnect error number ( ' & @error & ' ).' & @CRLF) TCPCloseSocket($Labview) TCPShutdown() Exit EndIf TCPSend($Labview, $cmd & @CRLF) TCPCloseSocket($Labview) TCPShutdown() EndFunc SendCmd("wt42d")  
      This is slightly modified code to send and receive data, which is not working. I am not getting any response back
      SendCmd("galil") Func SendCmd($cmd) TCPStartup() Local $IpAddress="192.168.10.101" Local $Port="5353" $Labview = TCPConnect($IpAddress,$Port) If @error Then ConsoleWrite('!--> TCPConnect error number ( ' & @error & ' ).' & @CRLF) TCPCloseSocket($Labview) TCPShutdown() Exit EndIf TCPSend($Labview, $cmd & @CRLF) $ip = @IPAddress1 ;create listening socket $Listensocket = TCPListen($ip, $Port) ConsoleWrite("Listening to Socket - " & $Listensocket & @CRLF) If $Listensocket = -1 Then ConsoleWrite("Exiting..." & @CRLF) Exit EndIf ;Accept incoming clients and recieve info While 1 $connectedsocket = TCPAccept($Listensocket) ConsoleWrite("Connecting to Socket - " & $connectedsocket & "Error -" & @error & @CRLF) If $ConnectedSocket >= 0 Then $ip2 = TCPRecv($connectedsocket,1000000) EndIf WEnd TCPCloseSocket($connectedsocket) TCPCloseSocket($Labview) TCPShutdown() EndFunc I am not getting anything back. I am getting the following output in the console
      +>Setting Hotkeys...--> Press Ctrl+Alt+Break to Restart or Ctrl+BREAK to Stop. Listening to Socket - 544 Connecting to Socket - -1Error -0 Connecting to Socket - -1Error -0 Connecting to Socket - -1Error -0 Connecting to Socket - -1Error -0 Connecting to Socket - -1Error -0 Connecting to Socket - -1Error -0 Connecting to Socket - -1Error -0 Connecting to Socket - -1Error -0 Connecting to Socket - -1Error -0 its going through that loop forever. i need to force stop it.
      But when i open putty and send the same command, i am getting response right away. 
      Can someone please help me with that.
      Thanks in advance
      Regards
      Yogendra
×
×
  • Create New...