public static final void main(String[] args)
{
boolean longOutput = false;
int arg = 0, index;
String handle, host;
FingerClient finger;
InetAddress address = null;
// Get flags. If an invalid flag is present, exit with usage message.
while (arg < args.length && args[arg].startsWith("-"))
{
if (args[arg].equals("-l")) {
longOutput = true;
} else {
System.err.println("usage: finger [-l] [[[handle][@<server>]] ...]");
System.exit(1);
}
++arg;
}
finger = new FingerClient();
// We want to timeout if a response takes longer than 60 seconds
finger.setDefaultTimeout(60000);
if (arg >= args.length)
{
// Finger local host
try
{
address = InetAddress.getLocalHost();
}
catch (UnknownHostException e)
{
System.err.println("Error unknown host: " + e.getMessage());
System.exit(1);
}
try
{
finger.connect(address);
System.out.print(finger.query(longOutput));
finger.disconnect();
}
catch (IOException e)
{
System.err.println("Error I/O exception: " + e.getMessage());
System.exit(1);
}
return ;
}
// Finger each argument
while (arg < args.length)
{
index = args[arg].lastIndexOf("@");
if (index == -1)
{
handle = args[arg];
try
{
address = InetAddress.getLocalHost();
}
catch (UnknownHostException e)
{
System.err.println("Error unknown host: " + e.getMessage());
System.exit(1);
}
}
else
{
handle = args[arg].substring(0, index);
host = args[arg].substring(index + 1);
try
{
address = InetAddress.getByName(host);
System.out.println("[" + address.getHostName() + "]");
}
catch (UnknownHostException e)
{
System.err.println("Error unknown host: " + e.getMessage());
System.exit(1);
}
}
try
{
finger.connect(address);
System.out.print(finger.query(longOutput, handle));
finger.disconnect();
}
catch (IOException e)
{
System.err.println("Error I/O exception: " + e.getMessage());
System.exit(1);