(Visual FoxPro) SFTP Resume Download

Demonstrates how to resume an SFTP download from a previous partial download.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

LOCAL loSftp
LOCAL lcHostname
LOCAL lnPort
LOCAL lnSuccess
LOCAL lcRemoteFilePath
LOCAL lcLocalFilePath

* This example assumes the Chilkat API to have been previously unlocked.
* See Global Unlock Sample for sample code.

* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.SFtp')
loSftp = CreateObject('Chilkat.SFtp')

* Set some timeouts, in milliseconds:
loSftp.ConnectTimeoutMs = 5000
loSftp.IdleTimeoutMs = 10000

* Connect to the SSH server.  
* The standard SSH port = 22
* The hostname may be a hostname or IP address.
lcHostname = "sftp.example.com"
lnPort = 22
lnSuccess = loSftp.Connect(lcHostname,lnPort)
IF (lnSuccess <> 1) THEN
    ? loSftp.LastErrorText
    RELEASE loSftp
    CANCEL
ENDIF

* Authenticate with the SSH server.  Chilkat SFTP supports
* both password-based authenication as well as public-key
* authentication.  This example uses password authenication.
lnSuccess = loSftp.AuthenticatePw("myLogin","myPassword")
IF (lnSuccess <> 1) THEN
    ? loSftp.LastErrorText
    RELEASE loSftp
    CANCEL
ENDIF

* After authenticating, the SFTP subsystem must be initialized:
lnSuccess = loSftp.InitializeSftp()
IF (lnSuccess <> 1) THEN
    ? loSftp.LastErrorText
    RELEASE loSftp
    CANCEL
ENDIF

* Download the file:

lcLocalFilePath = "c:/temp/hamlet.xml"
lcRemoteFilePath = "subdir1/subdir2/hamlet.xml"
* The ResumeDownloadFileByName method will check
* the local file and begin downloading the remote file
* at the appropriate point.  For example, if the local
* file is already 215624 bytes long, it will begin downloading
* the remote file at the 215625'th byte -- appending to
* the local file.
lnSuccess = loSftp.ResumeDownloadFileByName(lcRemoteFilePath,lcLocalFilePath)
IF (lnSuccess <> 1) THEN
    ? loSftp.LastErrorText
    RELEASE loSftp
    CANCEL
ENDIF

? "Success."

RELEASE loSftp