What Is Whois Client

  • 18 Feb, 2012

    Whois Client: This is whois, a very simple and generic whois client. This client, unlike the classic whois client, does not check for supported flags at the client side, except for -h (whois host) and -p (whois port).The whois(1) client makes a TCP/IP connection to the server and conducts the kind of protocolthat you would type if you where to make a connection by hand: [7:30am julian] whois reggers There were 1 matches on your request. Full Name: Quinton, Reg Department: Info Tech Svcs Room: NSC 214 Phone: 679-2111x(6026) Index Key: 481800 Machine Address: reggers@julian.uuu.com Directory Addresses: reg.quinton@uuu.com : r.quinton@uuu.com : reggers@uuu.com : quinton@uuu.com For more information try 'whois help'.The client sends the command "reggers", the server sends back the answer and the client displays the answer received to the user. When the server is finished the connection is closed.Sample code: whois(1) clientsub tcpopen { use Socket; # need socket interface my($server, $service) = @_;# args to this function my($proto, $port, $iaddr); # local variables my($handle)="$server::$service"; # localized obscure handledie("550:Cannot getprotobyname('tcp')rn") unless ($proto = getprotobyname('tcp'));die("550:Cannot getservbyname($service)rn")unless ($port = getservbyname($service, 'tcp'));die("550:Cannot gethostbyname($server)rn") unless ($iaddr = gethostbyname($server));die("550:Cannot create socketrn")unless socket($handle, PF_INET, SOCK_STREAM, $proto);die("550:Cannot connect($service://$server)rn")unless connect($handle, sockaddr_in($port, $iaddr)); # unbuffered I/O to that service select($handle); $| = 1; select(STDOUT); $| = 1; return($handle); }

    Comments Received:
    Please give your suggestions and feedback:

2009-2016 downloadmela.com. All rights reserved.