int base = 0;
boolean storeFile = false, binaryTransfer = false, error = false;
String server, username, password, remote, local;
FTPClient ftp;
for (base = 0; base < args.length; base++)
{
if (args[base].startsWith("-s"))
storeFile = true;
else if (args[base].startsWith("-b"))
binaryTransfer = true;
else
break;
}
if ((args.length - base) != 5)
{
System.err.println(USAGE);
System.exit(1);
}
server = args[base++];
username = args[base++];
password = args[base++];
remote = args[base++];
local = args[base];
ftp = new FTPClient();
ftp.addProtocolCommandListener(new PrintCommandListener(
new PrintWriter(System.out)));
try
{
int reply;
ftp.connect(server);
System.out.println("Connected to " + server + ".");
// After connection attempt, you should check the reply code to verify
// success.
reply = ftp.getReplyCode();
if (!FTPReply.isPositiveCompletion(reply))
{
ftp.disconnect();
System.err.println("FTP server refused connection.");
System.exit(1);
}
}
catch (IOException e)
{
if (ftp.isConnected())
{
try
{
ftp.disconnect();
}
catch (IOException f)
{
// do nothing
}
}
System.err.println("Could not connect to server.");
e.printStackTrace();
System.exit(1);
}
__main:
try
{
if (!ftp.login(username, password))
{
ftp.logout();
error = true;
break __main;
}
System.out.println("Remote system is " + ftp.getSystemName());
if (binaryTransfer)
ftp.setFileType(FTP.BINARY_FILE_TYPE);
// Use passive mode as default because most of us are
// behind firewalls these days.
ftp.enterLocalPassiveMode();
if (storeFile)
{
InputStream input;
input = new FileInputStream(local);
ftp.storeFile(remote, input);
input.close();
}
else
{
OutputStream output;
output = new FileOutputStream(local);
ftp.retrieveFile(remote, output);
output.close();
}
ftp.logout();
}
catch (FTPConnectionClosedException e)
{
error = true;
System.err.println("Server closed connection.");
e.printStackTrace();
}
catch (IOException e)
{
error = true;
e.printStackTrace();
}
finally
{
if (ftp.isConnected())
{
try
{
ftp.disconnect();
}
catch (IOException f)
{
// do nothing
}
}
}
System.exit(error ? 1 : 0);
