PaperMC/paper-server/nms-patches/net/minecraft/server/network/LegacyPingHandler.patch

--- a/net/minecraft/server/network/LegacyPingHandler.java
+++ b/net/minecraft/server/network/LegacyPingHandler.java
@@ -35,10 +35,11 @@
                 SocketAddress socketaddress = channelhandlercontext.channel().remoteAddress();
                 int i = bytebuf.readableBytes();
                 String s;
+                org.bukkit.event.server.ServerListPingEvent event = org.bukkit.craftbukkit.event.CraftEventFactory.callServerListPingEvent(socketaddress, server.getMotd(), server.getPlayerCount(), server.getMaxPlayers()); // CraftBukkit
 
                 if (i == 0) {
                     LegacyPingHandler.LOGGER.debug("Ping: (<1.3.x) from {}", socketaddress);
-                    s = createVersion0Response(this.server);
+                    s = createVersion0Response(this.server, event); // CraftBukkit
                     sendFlushAndClose(channelhandlercontext, createLegacyDisconnectPacket(channelhandlercontext.alloc(), s));
                 } else {
                     if (bytebuf.readUnsignedByte() != 1) {
@@ -55,7 +56,7 @@
                         LegacyPingHandler.LOGGER.debug("Ping: (1.4-1.5.x) from {}", socketaddress);
                     }
 
-                    s = createVersion1Response(this.server);
+                    s = createVersion1Response(this.server, event); // CraftBukkit
                     sendFlushAndClose(channelhandlercontext, createLegacyDisconnectPacket(channelhandlercontext.alloc(), s));
                 }
 
@@ -106,12 +107,16 @@
         }
     }
 
-    private static String createVersion0Response(ServerInfo serverinfo) {
-        return String.format(Locale.ROOT, "%s\u00a7%d\u00a7%d", serverinfo.getMotd(), serverinfo.getPlayerCount(), serverinfo.getMaxPlayers());
+    // CraftBukkit start
+    private static String createVersion0Response(ServerInfo serverinfo, org.bukkit.event.server.ServerListPingEvent event) {
+        return String.format(Locale.ROOT, "%s\u00a7%d\u00a7%d", event.getMotd(), event.getNumPlayers(), event.getMaxPlayers());
+        // CraftBukkit end
     }
 
-    private static String createVersion1Response(ServerInfo serverinfo) {
-        return String.format(Locale.ROOT, "\u00a71\u0000%d\u0000%s\u0000%s\u0000%d\u0000%d", 127, serverinfo.getServerVersion(), serverinfo.getMotd(), serverinfo.getPlayerCount(), serverinfo.getMaxPlayers());
+    // CraftBukkit start
+    private static String createVersion1Response(ServerInfo serverinfo, org.bukkit.event.server.ServerListPingEvent event) {
+        return String.format(Locale.ROOT, "\u00a71\u0000%d\u0000%s\u0000%s\u0000%d\u0000%d", 127, serverinfo.getServerVersion(), event.getMotd(), event.getNumPlayers(), event.getMaxPlayers());
+        // CraftBukkit end
     }
 
     private static void sendFlushAndClose(ChannelHandlerContext channelhandlercontext, ByteBuf bytebuf) {