Fixing session_disconnect and SSH_AGAIN seen as error in ssh_channel_read.

rsmcore/sessionworker.cc

@@ -141,6 +141,11 @@ void SessionWorker::disconnect()
   {
     radix_tagged_line("Disconnecting session.");
     ssh_disconnect(p->session);
+    // copy options in preparation for deletion
+    ssh_session new_session = ssh_new();
+    ssh_options_copy(p->session, &new_session);
+    ssh_free(p->session);
+    p->session = new_session;
     emit disconnectSuccessful();
   }
 }
@@ -395,7 +400,7 @@ void SessionWorker::requestExec(QString command)
   {
     ssh_channel_send_eof(channel);
   }
-  if (nbytes < 0)
+  if (nbytes < SSH_ERROR)
   {
     emit execFailed("Failed to read response from remote command.");
   }

rsmwidgets/examples/rsmportalexample.cc

@@ -273,6 +273,7 @@ void ExamplePortalWidget::execOutputReady()
 
 void ExamplePortalWidget::execFailed(QString message)
 {
+  radix_tagged_line(message.toStdString());
   mTextEdit->append(message);
   mTextEdit->append("\n");
 }