(Objective-C) Use Explicit FTP over TLS

Demonstrates how to connect to an FTP server using explicit FTP over TLS.

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#import <CkoFtp2.h>

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

CkoFtp2 *ftp = [[CkoFtp2 alloc] init];

ftp.Hostname = @"ftp.your-ftp-server.com";
ftp.Username = @"ftpAccountLogin";
ftp.Password = @"ftpAccountPassword";

// Indicate that the "AUTH TLS" command should be use to convert the connection to TLS
// after the initial TCP connection to port 21 is established.
ftp.AuthTls = YES;

// Connect and convert the connection to TLS automatically.
BOOL success = [ftp ConnectOnly];
if (success != YES) {
    NSLog(@"%@",ftp.LastErrorText);
    return;
}

success = [ftp LoginAfterConnectOnly];
if (success != YES) {
    NSLog(@"%@",ftp.LastErrorText);
    return;
}

NSLog(@"%@",@"TLS connection established and successfully authenticated.");