Fix crashes in sdremote after suspend/resume cycles.

Change-Id: I0f64820887919386f266290ae8b7c53f8a0a5458

sd/source/ui/remotecontrol/BufferedStreamSocket.cxx

@@ -77,7 +77,7 @@ sal_Int32 BufferedStreamSocket::readLine( OString& aLine )
         // Process buffer first incase data already present.
         vector<char>::iterator aIt;
         if ( (aIt = find( aBuffer.begin(), aBuffer.end(), '\n' ))
-            != aBuffer.end() )
+             != aBuffer.end() )
         {
             sal_uInt64 aLocation = aIt - aBuffer.begin();
 
@@ -96,9 +96,9 @@ sal_Int32 BufferedStreamSocket::readLine( OString& aLine )
         else
             aRet = ::recv( mSocket, &aBuffer[aRead], 100, 0 );
 
-        if ( aRet == 0 )
+        if ( aRet <= 0 )
         {
-                return aRet;
+            return 0;
         }
         // Prevent buffer from growing massively large.
         if ( aRead > MAX_LINE_LENGTH )

sd/source/ui/remotecontrol/Receiver.cxx

@@ -52,7 +52,8 @@ void Receiver::Timeout()
     {
         std::vector< rtl::OString > aCommands( maExecQueue.front() );
         maExecQueue.pop_front();
-        executeCommand( aCommands );
+        if( !aCommands.empty() )
+            executeCommand( aCommands );
         Start();
     }
     else