jscanner

commit f3f4087728e66e5102ef507baa9cd59fa7158ee8
parent 1c508e662dc2d6c52837fd7e9e18f04d0afe59f6
Author: Matthias Jaros <jaros@mailbox.org>
Date:   Sat,  4 Jul 2026 10:04:38 +0200

Only save results that found something. Not reachable hosts or no open
or filtered ports add no value to the scan and thus only cost RAM

Diffstat:
M
src/main/java/com/it_jaros/jscanner/Scanner.java
 | 
6
+++++-

1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/src/main/java/com/it_jaros/jscanner/Scanner.java b/src/main/java/com/it_jaros/jscanner/Scanner.java
@@ -84,7 +84,11 @@ public class Scanner implements AutoCloseable {
                     continue;
                 }
                 activeHostWorkers--;
-                scan.addScanResult(finishedHost.get());
+                ScanResult result = finishedHost.get();
+                // we only want results that give value and not cost RAM for nothing
+                if (!result.openPorts().isEmpty() || !result.filteredPorts().isEmpty()) {
+                    scan.addScanResult(finishedHost.get());
+                }
             } catch (InterruptedException e) {
                 Thread.currentThread().interrupt();
             } catch (ExecutionException e) {