feat(p2p): Show p2p port in the config menu

with love to my weblate people

src/config.cpp

@@ -20,18 +20,22 @@
 #include "wut_extra.h"
 #include "utils/logger.h"
 #include "utils/sysconfig.h"
+#include "patches/game_peertopeer.h"
 
 #include <wups.h>
 #include <wups/storage.h>
 #include <wups/config_api.h>
 #include <wups/config/WUPSConfigItemBoolean.h>
+#include <wups/config/WUPSConfigItemStub.h>
 
 #include <coreinit/title.h>
 #include <coreinit/launch.h>
 #include <sysapp/title.h>
 #include <sysapp/launch.h>
 #include <nn/act.h>
 
+#include <format>
+
 bool Config::connect_to_network = true;
 bool Config::need_relaunch = false;
 bool Config::unregister_task_item_pressed = false;
@@ -174,6 +178,12 @@ static WUPSConfigAPICallbackStatus ConfigMenuOpenedCallback(WUPSConfigCategoryHa
     res = network_cat->add(std::move(*connect_item), err);
     if (!res) return report_error(err);
 
+    {
+        std::string multiplayer_port_text = std::vformat(strings.multiplayer_port_display, std::make_format_args(peertopeer_port()));
+        res = network_cat->add(WUPSConfigItemStub::Create(multiplayer_port_text), err);
+        if (!res) return report_error(err);
+    }
+
     res = root.add(std::move(*network_cat), err);
     if (!res) return report_error(err);
 

src/config.h

@@ -35,6 +35,7 @@ struct config_strings {
     std::string_view need_menu_action;
     std::string_view using_nintendo_network;
     std::string_view using_pretendo_network;
+    std::string_view multiplayer_port_display;
 };
 
 config_strings get_config_strings(nn::swkbd::LanguageType language);

src/lang/en_US.lang

@@ -8,3 +8,4 @@
 ,.need_menu_action = "From WiiU menu only"
 ,.using_nintendo_network = "Using Nintendo Network"
 ,.using_pretendo_network = "Using Pretendo Network"
+,.multiplayer_port_display = "Using UDP port {} for multiplayer"

src/patches/game_peertopeer.cpp

@@ -27,7 +27,7 @@ static inline int digit(char a) {
     return a - '0';
 }
 
-static unsigned short peertopeer_port() {
+unsigned short peertopeer_port() {
     const char * serial = get_console_serial();
 
     unsigned short port = 50000 +

src/patches/game_peertopeer.h

@@ -14,3 +14,4 @@
 #pragma once
 
 void peertopeer_patch();
+unsigned short peertopeer_port();