VB.NET

Send a Raw FTP Command and Get the Reply

Demonstrates the Chilkat Ftp2.SendCommand method, which sends a raw FTP command and returns the complete server reply. The only argument is the command text, which must not contain CR or LF.

Background: This is the escape hatch for commands the API does not wrap directly — it sends exactly what you provide and hands back the full reply for you to interpret. It is limited to commands that complete on the control connection; anything requiring a data connection (a listing or transfer) needs the dedicated methods, which set up the data channel. Note the command is sent as UTF-8 and CommandCharset is not applied.

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Dim success As Boolean = False

'  Demonstrates the Ftp2.SendCommand method, which sends a raw FTP command and returns the
'  complete server reply.  The only argument is the command text.  Use this for a command not
'  otherwise exposed by the API.

Dim ftp As New Chilkat.Ftp2

ftp.Hostname = "ftp.example.com"
ftp.Username = "myFtpLogin"

'  Normally you would not hard-code the password in source.  You should instead obtain it
'  from an interactive prompt, environment variable, or a secrets vault.
ftp.Password = "myPassword"

'  Connect and log in (Connect performs both).
success = ftp.Connect()
If (success = False) Then
    Debug.WriteLine(ftp.LastErrorText)
    Exit Sub
End If


'  The command must not contain CR or LF characters.  Here PWD is sent as an example.
Dim reply As String = ftp.SendCommand("PWD")
If (ftp.LastMethodSuccess = False) Then
    Debug.WriteLine(ftp.LastErrorText)
    Exit Sub
End If

Debug.WriteLine(reply)

success = ftp.Disconnect()
If (success = False) Then
    Debug.WriteLine(ftp.LastErrorText)
    Exit Sub
End If