Visual FoxPro

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 lnSuccess
LOCAL loSftp
LOCAL lnPort
LOCAL lcPassword

lnSuccess = 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.

loSftp = CreateObject('Chilkat.SFtp')

*  Step 1: Connect the SSH transport.  Port 22 is the usual port.
lnPort = 22
lnSuccess = loSftp.Connect("sftp.example.com",lnPort)
IF (lnSuccess = 0) THEN
    ? loSftp.LastErrorText
    RELEASE loSftp
    CANCEL
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.
lcPassword = "mySshPassword"

lnSuccess = loSftp.AuthenticatePw("mySshLogin",lcPassword)
IF (lnSuccess = 0) THEN
    ? loSftp.LastErrorText
    RELEASE loSftp
    CANCEL
ENDIF

*  Step 3: Open the SFTP subsystem.  This must be done after authentication and before any
*  file or directory operations.
lnSuccess = loSftp.InitializeSftp()
IF (lnSuccess = 0) THEN
    ? loSftp.LastErrorText
    RELEASE loSftp
    CANCEL
ENDIF

*  ... perform SFTP operations ...

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

RELEASE loSftp