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