[network/libktorrent/release/26.08] src/tracker: Fix num peers calculation for UDP Tracker

Git commit 0c31d79034f27b815ef5f9458009797a7d87fce3 by Jack Hill.
Committed on 01/08/2026 at 12:34.
Pushed by jackh into branch 'release/26.08'.

Fix num peers calculation for UDP Tracker

The tracker will report the total number of seeders/leachers that is
knows of, but only send a subset of IPs.

BUG: 523426


(cherry picked from commit e5636364de1642f222528c3e16b849b55843ce70)

Co-authored-by: Jack Hill <[email protected]>

M  +2    -2    src/tracker/udptracker.cpp

https://invent.kde.org/network/libktorrent/-/commit/0c31d79034f27b815ef5f9458009797a7d87fce3

diff --git a/src/tracker/udptracker.cpp b/src/tracker/udptracker.cpp
index cd4a975f..c35e0445 100644
--- a/src/tracker/udptracker.cpp
+++ b/src/tracker/udptracker.cpp
@@ -135,9 +135,9 @@ void UDPTracker::announceReceived(Int32 tid, const bt::Uint8 *buf, bt::Uint32 si
     leechers = ReadInt32(buf, 12);
     seeders = ReadInt32(buf, 16);
 
-    const Uint32 nip = leechers + seeders;
     const auto ip_list = QByteArrayView{buf, size}.sliced(20);
-    for (Uint32 i = 0; i < nip; ++i) {
+    const auto num_peers = ip_list.size() / 6;
+    for (Uint32 i = 0; i < num_peers; ++i) {
         addPeer(net::Address::fromCompactIPv4(ip_list.sliced(i * 6, 6)), false);
     }