Add Unlaunch launcher patches check

Now only shows the TMD warning if you either don't have Unlaunch or have it with the old launcher patch that left RSA checks on

arm9/src/install.c

@@ -493,7 +493,7 @@ bool install(char* fpath, bool systemTitle)
 			else
 				goto error;
 		}
-		else if(!sdnandMode && access(tmdPath, F_OK) != 0)
+		else if(!sdnandMode && !unlaunchPatches && access(tmdPath, F_OK) != 0)
 		{
 			if (choicePrint("TMD not found, game cannot be\nplayed without Unlaunch's\nlauncher patches.\nSee wiki for how to get a TMD.\n\nInstall anyway?") == YES)
 				tmdFound = false;

arm9/src/main.c

@@ -10,6 +10,7 @@
 bool programEnd = false;
 bool sdnandMode = true;
 bool unlaunchFound = false;
+bool unlaunchPatches = false;
 bool devkpFound = false;
 bool launcherDSiFound = false;
 bool arm7Exiting = false;
@@ -169,10 +170,39 @@ int main(int argc, char **argv)
 			unsigned long long tmdSize = getFileSizePath(path);
 			if (tmdSize > 520)
 				unlaunchFound = true;
+
+			//check if launcher patches are enabled
+			const static u32 tidValues[][2] = {
+				// {location, value}
+				{0xE439, 0x382E3176}, // 1.8
+				{0xB07C, 0x17484E41}, // 1.9
+				{0xB099, 0x17484E41}, // 2.0 (Normal)
+				{0xB079, 0x484E1841}, // 2.0 (Patched)
+			};
+
+			FILE *tmd = fopen(path, "rb");
+			if (tmd)
+			{
+				for (int i = 0; i < sizeof(tidValues) / sizeof(tidValues[0]); i++)
+				{
+					if (fseek(file, tidValues[i][0], SEEK_SET) == 0)
+					{
+						u32 tidVal;
+						fread(&tidVal, sizeof(u32), 1, file);
+						if (tidVal == tidValues[i][1])
+						{
+							unlaunchPatches = true;
+							break;
+						}
+					}
+				}
+			}
 		}
 
 		if (!unlaunchFound)
 			messageBox("Unlaunch not found, please\ninstall it.\n\n\x1B[46mhttps://dsi.cfw.guide/\x1B[47m");
+		else if (!unlaunchPatches)
+			messageBox("Unlaunch's Launcher Patches are\nnot enabled. You will need to\nprovide TMD files or reinstall.\n\n\x1B[46mhttps://dsi.cfw.guide/\x1B[47m");
 	}
 
 	//check for dev.kp (Data Management visible)

arm9/src/main.h

@@ -8,6 +8,7 @@
 extern bool programEnd;
 extern bool sdnandMode;
 extern bool unlaunchFound;
+extern bool unlaunchPatches;
 extern bool charging;
 extern u8 batteryLevel;
 extern u8 region;