Try both ntrboot.nds and boot.nds when loading nitrofs

Bundle an installer.ver file in the nitrofiles so that it can be matched against the current version of the installer to ensure it's the right file being loaded

arm9/include/version.h

@@ -1,6 +1,6 @@
 #ifndef VERSION_H
 #define VERSION_H
 
-#define VERSION "v1.0"
+#define VERSION "v1.3"
 
 #endif // VERSION_H

arm9/src/main.cpp

@@ -3,6 +3,7 @@
 #include <format>
 #include <exception>
 #include <memory>
+#include <vector>
 
 #include "bgMenu.h"
 #include "consoleInfo.h"
@@ -273,6 +274,33 @@ void checkStage2Supported() {
     exit(0);
 }
 
+std::vector<std::string_view> getInstallerPaths(int argc, char **argv) {
+	if(argc > 0)
+		return {std::string_view{argv[0]}};
+	DeviceList* deviceList = getDeviceList();
+
+	if(deviceList) return {std::string_view{ deviceList->appname}};
+
+	return {"sd:/ntrboot.nds", "sd:/boot.nds"};
+}
+
+void setupNitrofs(int argc, char **argv) {
+	for(const auto& path : getInstallerPaths(argc, argv)){
+		if(!nitroFSInit(path.data()))
+			continue;
+		auto* file = fopen("nitro:/installer.ver", "rb");
+		if(!file)
+			continue;
+		char verstring[10]{};
+		fread(verstring, 1, sizeof(verstring) - 1, file);
+		fclose(file);
+		if(std::string_view{verstring} == VERSION)
+			return;
+	}
+	messageBox("nitroFSInit()...\x1B[31mFailed\n\x1B[47m");
+	exit(0);
+}
+
 void checkNocashFooter(consoleInfo& info) {
     NocashFooter footer;
 
@@ -324,16 +352,6 @@ void waitForBatteryChargedEnough() {
     }
 }
 
-const char* getInstallerPath(int argc, char **argv) {
-    if(argc > 0)
-        return argv[0];
-    DeviceList* deviceList = getDeviceList();
-
-    if(deviceList) return deviceList->appname;
-
-    return "sd:/ntrboot.nds";
-}
-
 void loadUnlaunchInstaller() {
     if (fileExists("sd:/unlaunch.dsi"))
     {
@@ -688,11 +706,7 @@ int main(int argc, char **argv)
 {
     setup();
     checkStage2Supported();
-
-    if (!nitroFSInit(getInstallerPath(argc, argv)))
-    {
-        messageBox("nitroFSInit()...\x1B[31mFailed\n\x1B[47m");
-    }
+	setupNitrofs(argc, argv);
 
     loadUnlaunchInstaller();
 

nitrofiles/installer.ver

@@ -0,0 +1 @@
+v1.3