Add support for custom decrypted TitleKey

makerom/user_settings.c

@@ -559,6 +559,14 @@ int SetArgument(int argc, int i, char *argv[], user_settings *set)
 		set->cia.randomTitleKey = true;
 		return 1;
 	}
+	else if (strcmp(argv[i], "-titlekey") == 0) {
+		if (ParamNum != 1) {
+			PrintArgReqParam(argv[i], 1);
+			return USR_ARG_REQ_PARAM;
+		}
+    set->cia.titleKey = argv[i + 1];
+		return 2;
+	}
 	else if (strcmp(argv[i], "-dlc") == 0) {
 		if (ParamNum) {
 			PrintNoNeedParam(argv[i]);
@@ -990,6 +998,7 @@ void DisplayExtendedHelp(char *app_name)
 	printf(" -dver          <version>           Data-title version\n");
 	printf(" -deviceid      <hex id>            3DS unique device ID\n");
 	printf(" -esaccid       <hex id>            e-Shop account ID\n");
+	printf(" -titlekey      <titlekey>          Specify decrypted title key\n");
 	printf(" -rand                              Use a random title key\n");
 	printf(" -dlc                               Create DLC CIA\n");
 	printf(" -srl           <srl file>          Package a TWL SRL in a CIA\n");