Do not hardcode syslog server

https://github.com/rsta2/circle/discussions/506#discussioncomment-11284425

src/config.cpp

@@ -209,7 +209,12 @@ void CConfig::Load (void)
 	m_INetworkSubnetMask = m_Properties.GetIPAddress("NetworkSubnetMask") != 0;
 	m_INetworkDefaultGateway = m_Properties.GetIPAddress("NetworkDefaultGateway") != 0;
 	m_INetworkDNSServer = m_Properties.GetIPAddress("NetworkDNSServer") != 0;
-	m_INetworkSyslogServerIPAddress = m_Properties.GetIPAddress("NetworkSyslogServerIPAddress") != 0;
+
+	const u8 *pSyslogServerIP = m_Properties.GetIPAddress ("NetworkSyslogServerIPAddress");
+	if (pSyslogServerIP)
+	{
+		m_INetworkSyslogServerIPAddress.Set (pSyslogServerIP);
+	}
 }
 
 unsigned CConfig::GetToneGenerators (void) const

src/minidexed.cpp

@@ -2329,16 +2329,18 @@ bool CMiniDexed::InitNetwork()
 
 			m_pNetDevice = CNetDevice::GetNetDevice(NetDeviceType);
 
-			// Syslog configuration
-			static const u8 SysLogServer[]   = {192, 168, 0, 143}; // FIXME: Don't hardcode this, use m_INetworkSyslogServerIPAddress instead
-			static const u16 usServerPort    = 8514;		// standard port is 514
-			CIPAddress ServerIP (SysLogServer);
-			CString IPString;
-			ServerIP.Format (&IPString);
-			LOGNOTE ( "Sending log messages to %s:%u",
-			(const char *) IPString, (unsigned) usServerPort);
-
-			new CSysLogDaemon (m_pNet, ServerIP, usServerPort);
+			// syslog configuration
+			CIPAddress ServerIP = m_pConfig->GetNetworkSyslogServerIPAddress();
+			if (ServerIP.IsSet () && !ServerIP.IsNull ())
+			{
+				static const u16 usServerPort = 8514;	// standard port is 514
+				CString IPString;
+				ServerIP.Format (&IPString);
+				LOGNOTE ("Sending log messages to syslog server %s:%u",
+					(const char *) IPString, (unsigned) usServerPort);
+
+				new CSysLogDaemon (m_pNet, ServerIP, usServerPort);
+			}
 
 		}
 	return m_pNet != nullptr;