Perl

FTP Automatic Post-Connect Commands

Demonstrates the AutoFeat, AutoSyst, AutoOptsUtf8, and AutoXcrc properties, which control commands Chilkat issues automatically around connecting and transferring.

Background: Chilkat normally probes and adapts to a server on its own: AutoFeat discovers capabilities with FEAT, AutoSyst learns the OS type to parse legacy listings, and AutoOptsUtf8 enables UTF-8 filenames when the server advertises it. These are on by default and rarely worth changing. AutoXcrc is the exception worth enabling deliberately — it verifies each upload with the server's XCRC checksum, catching corruption automatically where supported.

Chilkat Perl Downloads

Download Chilkat for Perl

Perl

use chilkat();

$success = 0;

$ftp = chilkat::CkFtp2->new();

$ftp->put_Hostname("ftp.example.com");
$ftp->put_Username("myFtpLogin");

#  These auto-* properties control commands Chilkat sends automatically after connecting.  They
#  are on/off by default as noted, and are rarely changed.

#  AutoFeat (default 1): automatically send FEAT to discover server capabilities.
$ftp->put_AutoFeat(1);

#  AutoSyst (default 1): automatically send SYST after login to learn the server OS type.
$ftp->put_AutoSyst(1);

#  AutoOptsUtf8 (default 1): send OPTS UTF8 ON when the FEAT response advertises UTF8.
$ftp->put_AutoOptsUtf8(1);

#  AutoXcrc (default 0): request an XCRC checksum after each upload and treat a mismatch as
#  a failure, giving automatic post-upload verification where the server supports XCRC.
$ftp->put_AutoXcrc(1);

#  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.
$ftp->put_Password("myPassword");

$success = $ftp->Connect();
if ($success == 0) {
    print $ftp->lastErrorText() . "\r\n";
    exit;
}

print "Connected with the configured automatic features." . "\r\n";

$success = $ftp->Disconnect();
if ($success == 0) {
    print $ftp->lastErrorText() . "\r\n";
    exit;
}