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G120 based device - FtpWebRequest use


Hi all,

I’m trowing some lines together to upload a log file to a FTP server but i get

    #### Exception System.IndexOutOfRangeException - 0xa9000000 (9) ####
    #### Message: 
    #### System.Net.FtpWebRequest::UploadThread [IP: 000d] ####
A first chance exception of type 'System.IndexOutOfRangeException' occurred in System.Ftp.dll
An unhandled exception of type 'System.IndexOutOfRangeException' occurred in System.Ftp.dll
The program '[2] Micro Framework application: Managed' has exited with code 0 (0x0).

on Stream requestStream = request.GetRequestStream();

            FtpWebRequest request = (FtpWebRequest)WebRequest.Create("");
            request.Method = WebRequestMethods.Ftp.UploadFile;
            request.Credentials = new NetworkCredential("IRC", "*****");
            request.ServerPort = 21;
            request.UsePassive = false;
            FileStream sourceStream = new FileStream(@ "SD\boot.config", FileMode.Open, FileAccess.Read, FileShare.None, _buffersize);
            Stream requestStream = request.GetRequestStream(); 

Anny first idea’s ?


The FTP Server is very buggy. I wouldn’t be surprised if FTP client is as well. :think:
1st I would change UsePassive to true (just to try if that works.
If that does not help, and you need FTP, I would get the sources and fix it (I did for the Server, it’s on codeshare).

Alternatively you could use my CIFS client (also on codeshare) if a network share is an alternative for you.
It should work quite well, but currently it supports plain text authentication only.


So maybe best to download the porting kit and add the ftpclient from the source…
I have a look in the morning and see where i end up :whistle:


there are two ftp-client applications on CodeShare.
I did not test them yet.


I had a quick look but both are using sockets and i believe sockets where a problem in 4.2? or not?

I have a deeper look in the morning but fixing ftpclient would be a benefit for the community i think.


The FTPClient is working but indeed not really stable.
If i run my sample on a fixed network connection al seems to work fine but if i connect to a 3G Wlan i get a bunch socket errors.

I download the porting kit and had a look at the code but there is allot unfinished code…

I also had a look to the codeshare entry’s (these are 4.1) and i think extending the functionality in there is probably the shortest route…


I do not see what the Problem should be with sockets in 4.2.
There is a Limit on parallel open sockets, but that’s partially in the GHI FW and was increased in later Versions.
I make really heavy use of Sockets with TCP connections on a G120 wit FW V4.2.11.1. No problem so far. May be a small memory leak, but I’m not sure if it comes from sockets or anything else.