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ftp with perl

Written on September 11, 2003

#!/usr/bin/perl -w

# Yet another time when dependence on libraries bit me, I had to see if
# I could manage an ftp script using the core perl libraries, so I wasn\'t
# dependent on Net::FTP being present in the same form on the system.
# This is just my proof of concept, developed with telnet and the perl
# cookbook.

use IO::Socket;

$remote_host = "remotehost";
$remote_port = 21;
$user = "username";
$pass = "password";

$socket = IO::Socket::INET->new(PeerAddr => $remote_host,
                                PeerPort => $remote_port,
                                Proto    => "tcp",
                                Type     => SOCK_STREAM)
    or die "Couldn\'t connect to $remote_host:$remote_port : $@n";

# AUTHENTICATION

$answer = < $socket>;
print "$answer";

print $socket "user $usern";
$answer = < $socket>;
print "$answer";

print $socket "pass $passn";
$answer = < $socket>;
print "$answer";

# DIRECTORY NAVIGATION

print $socket "pwdn";
$answer = < $socket>;
print "$answer";

# QUIT

print $socket "quitn";
$answer = < $socket>;
print "$answer";

# and terminate the connection when we\'re done
close($socket);

Filed in: code.

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