AddrSrv. Sin_addr. S_un. S_addr=inet_addr (Sntp_IP);
AddrSrv. Sin_family=AF_INET;
AddrSrv. Sin_port=htons (123);
,,,,,,,,

The above code is embedded into the VC code, C to ask: how can I get in to Sntp_IP VC interface input a web site?
What should Sntp_IP this variable is defined?