Rename 'attached' to 'has_remote_addr'

Even with future support for detaching and reattaching, this variable will keep
its original meaning.

src/frontend/mosh-server.cc

@@ -352,7 +352,7 @@ void serve( int host_fd, Terminal::Complete &terminal, ServerConnection &network
 	  break;
 	}
 
-	if ( network.attached() && (!network.shutdown_in_progress()) ) {
+	if ( network.has_remote_addr() && (!network.shutdown_in_progress()) ) {
 	  network.start_shutdown();
 	} else {
 	  break;
@@ -368,7 +368,7 @@ void serve( int host_fd, Terminal::Complete &terminal, ServerConnection &network
       if ( (pollfds[ 1 ].revents)
 	   & (POLLERR | POLLHUP | POLLNVAL) ) {
 	/* host problem */
-	if ( network.attached() ) {
+	if ( network.has_remote_addr() ) {
 	  network.start_shutdown();
 	} else {
 	  break;

src/frontend/stmclient.cc

@@ -211,7 +211,7 @@ bool STMClient::process_user_input( int fd )
 
       if ( quit_sequence_started ) {
 	if ( the_byte == '.' ) { /* Quit sequence is Ctrl-^ . */
-	  if ( network->attached() && (!network->shutdown_in_progress()) ) {
+	  if ( network->has_remote_addr() && (!network->shutdown_in_progress()) ) {
 	    overlays.get_notification_engine().set_notification_string( wstring( L"Exiting on user request..." ) );
 	    network->start_shutdown();
 	    return true;
@@ -312,7 +312,7 @@ void STMClient::main( void )
       if ( pollfds[ 1 ].revents & POLLIN ) {
 	/* input from the user needs to be fed to the network */
 	if ( !process_user_input( pollfds[ 1 ].fd ) ) {
-	  if ( !network->attached() ) {
+	  if ( !network->has_remote_addr() ) {
 	    break;
 	  } else if ( !network->shutdown_in_progress() ) {
 	    overlays.get_notification_engine().set_notification_string( wstring( L"Exiting..." ) );
@@ -337,7 +337,7 @@ void STMClient::main( void )
 	  break;
 	}
 
-	if ( !network->attached() ) {
+	if ( !network->has_remote_addr() ) {
 	  break;
 	} else if ( !network->shutdown_in_progress() ) {
 	  overlays.get_notification_engine().set_notification_string( wstring( L"Signal received, shutting down..." ) );
@@ -354,7 +354,7 @@ void STMClient::main( void )
       if ( (pollfds[ 1 ].revents)
 	   & (POLLERR | POLLHUP | POLLNVAL) ) {
 	/* user problem */
-	if ( !network->attached() ) {
+	if ( !network->has_remote_addr() ) {
 	  break;
 	} else if ( !network->shutdown_in_progress() ) {
 	  overlays.get_notification_engine().set_notification_string( wstring( L"Exiting..." ) );

src/network/network.cc

@@ -105,9 +105,9 @@ void Connection::setup( void )
 
 Connection::Connection( const char *desired_ip ) /* server */
   : sock( -1 ),
+    has_remote_addr( false ),
     remote_addr(),
     server( true ),
-    attached( false ),
     MTU( SEND_MTU ),
     key(),
     session( key ),
@@ -150,9 +150,9 @@ Connection::Connection( const char *desired_ip ) /* server */
 
 Connection::Connection( const char *key_str, const char *ip, int port ) /* client */
   : sock( -1 ),
+    has_remote_addr( false ),
     remote_addr(),
     server( false ),
-    attached( false ),
     MTU( SEND_MTU ),
     key( key_str ),
     session( key ),
@@ -177,12 +177,12 @@ Connection::Connection( const char *key_str, const char *ip, int port ) /* clien
     throw NetworkException( buffer, saved_errno );
   }
 
-  attached = true;
+  has_remote_addr = true;
 }
 
 void Connection::send( string s )
 {
-  assert( attached );
+  assert( has_remote_addr );
 
   Packet px = new_packet( s );
 
@@ -252,7 +252,7 @@ string Connection::recv( void )
     }
 
     /* auto-adjust to remote host */
-    attached = true;
+    has_remote_addr = true;
 
     if ( (remote_addr.sin_addr.s_addr != packet_remote_addr.sin_addr.s_addr)
 	 || (remote_addr.sin_port != packet_remote_addr.sin_port) ) {

src/network/network.h

@@ -75,10 +75,10 @@ namespace Network {
     static const uint64_t MAX_RTO = 1000; /* ms */
 
     int sock;
+    bool has_remote_addr;
     struct sockaddr_in remote_addr;
 
     bool server;
-    bool attached;
 
     int MTU;
 
@@ -110,7 +110,7 @@ namespace Network {
 
     int port( void ) const;
     string get_key( void ) const { return key.printable_key(); }
-    bool get_attached( void ) const { return attached; }
+    bool get_has_remote_addr( void ) const { return has_remote_addr; }
 
     uint64_t timeout( void ) const;
     double get_SRTT( void ) const { return SRTT; }

src/network/networktransport.h

@@ -73,7 +73,7 @@ namespace Network {
     bool shutdown_in_progress( void ) const { return sender.get_shutdown_in_progress(); }
     bool shutdown_acknowledged( void ) const { return sender.get_shutdown_acknowledged(); }
     bool shutdown_ack_timed_out( void ) const { return sender.shutdown_ack_timed_out(); }
-    bool attached( void ) const { return connection.get_attached(); }
+    bool has_remote_addr( void ) const { return connection.get_has_remote_addr(); }
 
     /* Other side has requested shutdown and we have sent one ACK */
     bool counterparty_shutdown_ack_sent( void ) const { return sender.get_counterparty_shutdown_acknowledged(); }

src/network/transportsender.cc

@@ -111,7 +111,7 @@ int TransportSender<MyState>::wait_time( void )
 
   uint64_t now = timestamp();
 
-  if ( !connection->get_attached() ) {
+  if ( !connection->get_has_remote_addr() ) {
     return -1;
   }
 
@@ -128,7 +128,7 @@ void TransportSender<MyState>::tick( void )
 {
   calculate_timers(); /* updates assumed receiver state and rationalizes */
 
-  if ( !connection->get_attached() ) {
+  if ( !connection->get_has_remote_addr() ) {
     return;
   }