Xbase++

Disconnect from an SFTP Server

Demonstrates the Chilkat SFtp.Disconnect method, which closes the current SSH/SFTP connection. It takes no arguments. All remote file and directory handles from the session become invalid and must not be reused.

Background: Disconnecting releases the SSH transport and every SFTP handle opened on it. The object itself stays reusable, but a later session must repeat the full setup — Connect, authenticate, then InitializeSftp — because the SFTP subsystem does not survive a disconnect.

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LOCAL nSuccess
LOCAL oSftp
LOCAL nPort
LOCAL cPassword

nSuccess := 0

//  Demonstrates the SFtp.Disconnect method, which closes the current SSH/SFTP connection.  It
//  takes no arguments.  All remote file and directory handles from the session become invalid.

oSftp := CreateObject("Chilkat.SFtp")

//  Step 1: Connect the SSH transport.  Port 22 is the usual port.
nPort := 22
nSuccess := oSftp:Connect("sftp.example.com", nPort)
IF (nSuccess == 0)
    ? oSftp:LastErrorText
    oSftp:destroy()
    RETURN
ENDIF

//  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.
cPassword := "mySshPassword"

nSuccess := oSftp:AuthenticatePw("mySshLogin", cPassword)
IF (nSuccess == 0)
    ? oSftp:LastErrorText
    oSftp:destroy()
    RETURN
ENDIF

//  Step 3: Open the SFTP subsystem.  This must be done after authentication and before any
//  file or directory operations.
nSuccess := oSftp:InitializeSftp()
IF (nSuccess == 0)
    ? oSftp:LastErrorText
    oSftp:destroy()
    RETURN
ENDIF

//  ... perform SFTP operations ...

//  Close the connection.  The object remains reusable: a later session must Connect,
//  authenticate, and InitializeSftp again.
oSftp:Disconnect()

oSftp:destroy()