/*
* Connect any NTP-Pool server to query the current time.
*/
static void QueryDateAndTime(void)
{
uint32_t ip;
time_t now;
int i;
/* First connect the DNS server to get the IP address. */
printf("Is There Anybody Out There? ");
ip = NutDnsGetHostByName((uint8_t *) "pool.ntp.org");
if (ip == 0) {
puts("No?");
} else {
/* We do have an IP, now try to connect it. */
printf("Yes, found %s\n", inet_ntoa(ip));
for (i = 0; i < 3; i++) {
printf("What's the time? ");
if (NutSNTPGetTime(&ip, &now) == 0) {
/* We got a valid response, display the result. */
printf("%s GMT\n", Rfc1123TimeString(gmtime(&now)));
return;
} else {
/* It failed. May be the server is too busy. Try
again in 5 seconds. */
puts("Sorry?");
NutSleep(5000);
}
}
}
/* We give up after 3 trials. */
puts("You missed the starting gun.");
}
int TcpHostConnect(TCPSOCKET *sock, const char * host, uint16_t port)
{
uint32_t ip;
/* Get remote host IP address. */
ip = inet_addr(host);
if (ip == (uint32_t)-1 || ip == 0) {
/* Doesn't look like an address, try host name. */
ip = NutDnsGetHostByName((uint8_t *)host);
if (ip == 0) {
/* Give up. */
return -1;
}
}
/* Got a valid address, connect to it. */
return NutTcpConnect(sock, ip, port);
}
