-int64_t NtpGetTime();
+// Get time from random server and return server address.
+int64_t NtpGetTime(CNetAddr& ip);
+
+// Get time from provided server.
int64_t NtpGetTime(std::string &strHostName);
+extern std::string strTrustedUpstream;
+
+// NTP time samples thread.
+void ThreadNtpSamples(void* parg);
+
+// NTP offset
+int64_t GetNtpOffset();