From bb7e4331a92acc9c0267a744f3b8dd7ff1e5dea8 Mon Sep 17 00:00:00 2001
From: Matthias Jaros <jarlucmat@mailbox.org>
Date: Mon, 16 Feb 2026 17:07:46 +0100
Subject: Added PortRange class that generates ports to scan

---
 src/main/java/com/it_jaros/networkScanner/Scanner.java | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

(limited to 'src/main/java/com/it_jaros/networkScanner/Scanner.java')

diff --git a/src/main/java/com/it_jaros/networkScanner/Scanner.java b/src/main/java/com/it_jaros/networkScanner/Scanner.java
index fae1890..10028aa 100644
--- a/src/main/java/com/it_jaros/networkScanner/Scanner.java
+++ b/src/main/java/com/it_jaros/networkScanner/Scanner.java
@@ -34,18 +34,18 @@ public class Scanner {
     }
 
     public List<ScanResult> scanPorts(ScanOptions target) {
-        return scanPorts(target.targets(), target.delayInMillis());
+        return scanPorts(target.targets(), target.delayInMillis(), new PortRange(target.ports()));
     }
 
-    public List<ScanResult> scanPorts(List<String> targets, int delayInMillis) {
+    public List<ScanResult> scanPorts(List<String> targets, int delayInMillis, PortRange portsRange) {
         List<ScanResult> results = new ArrayList<>();
         long delayInNanos = TimeUnit.MILLISECONDS.toNanos(Math.max(0, delayInMillis));
         try (ExecutorService executor = Executors.newVirtualThreadPerTaskExecutor();) {
             List<Progress> hosts = new ArrayList<>();
             for (String target : targets) {
-                Progress progress = new Progress(target, 65535, new AtomicInteger(), new AtomicInteger());
+                Progress progress = new Progress(target, portsRange.getTotal(), new AtomicInteger(), new AtomicInteger());
                 hosts.add(progress);
-                results.add(scanTargetAsync(target, delayInNanos, executor, progress));
+                results.add(scanTargetAsync(target, portsRange, delayInNanos, executor, progress));
             }
             progressBar.start(hosts);
         }
@@ -55,11 +55,11 @@ public class Scanner {
         return results;
     }
 
-    private ScanResult scanTargetAsync(String target, long delayInNanos, ExecutorService executor, Progress p) {
+    private ScanResult scanTargetAsync(String target, PortRange portRange, long delayInNanos, ExecutorService executor, Progress p) {
         AtomicLong nextStartNanos = new AtomicLong(System.nanoTime());
         Queue<Integer> openPorts = new ConcurrentLinkedQueue<>();
-        for (int port = 1; port < 65536; port++) {
-            final int currentPort = port;
+        while (portRange.hasNext()) {
+            final int currentPort = portRange.next();
             executor.submit(() -> {
                 try {
                     scanPortsAsync(target, delayInNanos, nextStartNanos, openPorts, currentPort);
-- 
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