odd behavior with C# ftp client class
- by geoff
I found an ftp client class in c# over a year ago and have been using it in a process that uploads files on a nightly basis. A few days ago we started having a problem where it would time out. I'm not well versed in this so I'm not sure why it's doing this.
When the program starts uploading a file it checks to see if it's logged in and if not, it calls the login method. In that method is this block of code.
if (this.resultCode != 230)
{
this.sendCommand("PASS " + password);
if (!(this.resultCode == 230 || this.resultCode == 202))
{
this.cleanup();
throw new FtpException(this.result.Substring(4));
}
}
On the line that says this.sendCommand("PASS"... it goes into this code.
private void sendCommand(String command)
{
if (this.verboseDebugging) Debug.WriteLine(command, "FtpClient");
Byte[] cmdBytes = Encoding.ASCII.GetBytes((command + "\r\n").ToCharArray());
clientSocket.Send(cmdBytes, cmdBytes.Length, 0);
this.readResponse();
}
If I let the program run, it times out. However if I step through it into the sendCommand method it executes fine. Does anyone know why it would work fine when I step through it? Nothing on our end has changed and I've been told nothing on the client's end has changed so I'm stumped. Thanks.
