fix meshnet mode:

* don't default to ipv4 when creating router.info
* add i2p::util::config::GetHost for getting host to use from config
* proper check for no transports in Transports.cpp on startup

Daemon.cpp

@@ -124,47 +124,16 @@ namespace i2p
 			ipv4 = false;
 			ipv6 = true;
 #endif
-
-			i2p::context.SetSupportsV6		 (ipv6);
-			i2p::context.SetSupportsV4		 (ipv4);
-
-			bool nat; i2p::config::GetOption("nat", nat);
-			if (nat)
-			{
-				LogPrint(eLogInfo, "Daemon: assuming be are behind NAT");
-				// we are behind nat, try setting via host 
-				std::string host; i2p::config::GetOption("host", host);
-				if (!i2p::config::IsDefault("host"))
-				{
-					LogPrint(eLogInfo, "Daemon: setting address for incoming connections to ", host);
-					i2p::context.UpdateAddress (boost::asio::ip::address::from_string (host));	
-				}
-			}
-			else
-			{
-				// we are not behind nat
-				std::string ifname; i2p::config::GetOption("ifname", ifname);
-				if (ifname.size())
-				{
-					// bind to interface, we have no NAT so set external address too
-					auto addr = i2p::util::net::GetInterfaceAddress(ifname, ipv6);
-					LogPrint(eLogInfo, "Daemon: bind to network interface ", ifname, " with public address ", addr);
-					i2p::context.UpdateAddress(addr);
-				}
-			}
-
-			
 			uint16_t port; i2p::config::GetOption("port", port);
 			if (!i2p::config::IsDefault("port"))
-			{	
+			{
 				LogPrint(eLogInfo, "Daemon: accepting incoming connections at port ", port);
 				i2p::context.UpdatePort (port);
-			}	
+			}
-
-      
-			bool transit; i2p::config::GetOption("notransit", transit);
 			i2p::context.SetSupportsV6		 (ipv6);
 			i2p::context.SetSupportsV4		 (ipv4);
+			
+			bool transit; i2p::config::GetOption("notransit", transit);
 			i2p::context.SetAcceptsTunnels (!transit);
 			uint16_t transitTunnels; i2p::config::GetOption("limits.transittunnels", transitTunnels);
 			SetMaxNumTransitTunnels (transitTunnels);
@@ -252,14 +221,15 @@ namespace i2p
 			bool ntcp; i2p::config::GetOption("ntcp", ntcp);
 			bool ssu; i2p::config::GetOption("ssu", ssu);
 			LogPrint(eLogInfo, "Daemon: starting Transports");
-			if(!ssu) LogPrint(eLogDebug, "Daemon: ssu disabled");
+			if(!ssu) LogPrint(eLogInfo, "Daemon: ssu disabled");
-			if(!ntcp) LogPrint(eLogDebug, "Daemon: ntcp disabled");
+			if(!ntcp) LogPrint(eLogInfo, "Daemon: ntcp disabled");
 			i2p::transport::transports.Start(ntcp, ssu);
 			if (i2p::transport::transports.IsBoundNTCP() || i2p::transport::transports.IsBoundSSU()) {
 				LogPrint(eLogInfo, "Daemon: Transports started");
 			} else {
 				LogPrint(eLogError, "Daemon: failed to start Transports");
 				/** shut down netdb right away */
+				i2p::transport::transports.Stop();
 				i2p::data::netdb.Stop();
 				return false;
 			}

RouterContext.cpp

@@ -49,9 +49,7 @@ namespace i2p
 		uint16_t port; i2p::config::GetOption("port", port);
 		if (!port)
 			port = rand () % (30777 - 9111) + 9111; // I2P network ports range
-		std::string host; i2p::config::GetOption("host", host);
+		std::string host = i2p::util::config::GetHost();
-		if (i2p::config::IsDefault("host"))
-			host = "127.0.0.1"; // replace default address with safe value
 		routerInfo.AddSSUAddress  (host.c_str(), port, routerInfo.GetIdentHash ());
 		routerInfo.AddNTCPAddress (host.c_str(), port);
 		routerInfo.SetCaps (i2p::data::RouterInfo::eReachable | 

Transports.cpp

@@ -114,7 +114,7 @@ namespace transport
 		auto& addresses = context.GetRouterInfo ().GetAddresses ();
 		for (auto address : addresses)
 		{
-			if (!m_NTCPServer && enableNTCP)
+			if (m_NTCPServer == nullptr && enableNTCP)
 			{
 				m_NTCPServer = new NTCPServer ();
 				m_NTCPServer->Start ();
@@ -129,7 +129,7 @@ namespace transport
 			
 			if (address->transportStyle == RouterInfo::eTransportSSU)
 			{
-				if (!m_SSUServer && enableSSU)
+				if (m_SSUServer == nullptr && enableSSU)
 				{
 					if (address->host.is_v4())
 						m_SSUServer = new SSUServer (address->port);

util.cpp

@@ -461,5 +461,30 @@ namespace net
 	}
 } 
 
+namespace config
+{
+	std::string GetHost(bool ipv4, bool ipv6)
+	{
+		std::string host;
+		if(ipv6)
+			host = "::";
+		else if(ipv4)
+			host = "127.0.0.1";
+		bool nat; i2p::config::GetOption("nat", nat);
+		if (nat)
+		{
+			if (!i2p::config::IsDefault("host"))
+				i2p::config::GetOption("host", host);
+		}
+		else
+		{
+			// we are not behind nat
+			std::string ifname; i2p::config::GetOption("ifname", ifname);
+			if (ifname.size())
+				host = i2p::util::net::GetInterfaceAddress(ifname, ipv6).to_string(); // bind to interface, we have no NAT so set external address too
+		}
+		return host;
+	}
+} // config
 } // util
 } // i2p

util.h

@@ -68,6 +68,12 @@ namespace util
 		int GetMTU (const boost::asio::ip::address& localAddress);
 		const boost::asio::ip::address GetInterfaceAddress(const std::string & ifname, bool ipv6=false);
 	}
+
+	namespace config
+	{
+		/** get the host to use from out config, for use in RouterContext.cpp */
+		std::string GetHost(bool ipv4=true, bool ipv6=true);
+	}
 }
 }