sample.m

    PFYPacket *pkt = [PFYPacket fromNSData:data];
    
    if([[pkt cmd] isEqualToString:@"dAmnServer"]) {
        NSLog(@"Connected to dAmnServer %@",[pkt param]);
        NSString *pkt = @"login photofroggy\npk=*****************\n\0";
        [socket writeData:[pkt dataUsingEncoding:NSUTF8StringEncoding] withTimeout:-1 tag:2];
    }
    
    if([[pkt cmd] isEqualToString:@"login"]) {
        if(![[pkt argument:@"e"] isEqualToString:@"ok"]) {
            NSLog(@"Login failed");
            return;
        }
        NSLog(@"Logged in as %@", [pkt param]);
    }