C#

SFTP Resume Download

See more SFTP Examples

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

bool success = false;

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

Chilkat.SFtp sftp = new Chilkat.SFtp();

//  Set some timeouts, in milliseconds:
sftp.ConnectTimeoutMs = 5000;
sftp.IdleTimeoutMs = 10000;

//  Connect to the SSH server.  
//  The standard SSH port = 22
//  The hostname may be a hostname or IP address.
string hostname = "sftp.example.com";
int port = 22;
success = sftp.Connect(hostname,port);
if (success != true) {
    Debug.WriteLine(sftp.LastErrorText);
    return;
}

//  Authenticate with the SSH server.  Chilkat SFTP supports
//  both password-based authenication as well as public-key
//  authentication.  This example uses password authenication.
success = sftp.AuthenticatePw("myLogin","myPassword");
if (success != true) {
    Debug.WriteLine(sftp.LastErrorText);
    return;
}

//  After authenticating, the SFTP subsystem must be initialized:
success = sftp.InitializeSftp();
if (success != true) {
    Debug.WriteLine(sftp.LastErrorText);
    return;
}

//  Download the file:
string remoteFilePath;
string localFilePath;
localFilePath = "c:/temp/hamlet.xml";
remoteFilePath = "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.
success = sftp.ResumeDownloadFileByName(remoteFilePath,localFilePath);
if (success != true) {
    Debug.WriteLine(sftp.LastErrorText);
    return;
}

Debug.WriteLine("Success.");