FileSys: rename SaveDataCheck archive to NCCH archive

According to the observation from game and 3dbrew "Used for accessing general NCCH data"

src/core/CMakeLists.txt

@@ -17,9 +17,9 @@ set(SRCS
             core_timing.cpp
             file_sys/archive_backend.cpp
             file_sys/archive_extsavedata.cpp
+            file_sys/archive_ncch.cpp
             file_sys/archive_romfs.cpp
             file_sys/archive_savedata.cpp
-            file_sys/archive_savedatacheck.cpp
             file_sys/archive_sdmc.cpp
             file_sys/archive_sdmcwriteonly.cpp
             file_sys/archive_systemsavedata.cpp
@@ -162,9 +162,9 @@ set(HEADERS
             core_timing.h
             file_sys/archive_backend.h
             file_sys/archive_extsavedata.h
+            file_sys/archive_ncch.h
             file_sys/archive_romfs.h
             file_sys/archive_savedata.h
-            file_sys/archive_savedatacheck.h
             file_sys/archive_sdmc.h
             file_sys/archive_sdmcwriteonly.h
             file_sys/archive_systemsavedata.h

src/core/file_sys/archive_savedatacheck.cpp → src/core/file_sys/archive_ncch.cpp

@@ -9,7 +9,7 @@
 #include "common/file_util.h"
 #include "common/logging/log.h"
 #include "common/string_util.h"
-#include "core/file_sys/archive_savedatacheck.h"
+#include "core/file_sys/archive_ncch.h"
 #include "core/file_sys/ivfc_archive.h"
 #include "core/hle/service/fs/archive.h"
 
@@ -18,22 +18,22 @@
 
 namespace FileSys {
 
-static std::string GetSaveDataCheckContainerPath(const std::string& nand_directory) {
+static std::string GetNCCHContainerPath(const std::string& nand_directory) {
     return Common::StringFromFormat("%s%s/title/", nand_directory.c_str(), SYSTEM_ID.c_str());
 }
 
-static std::string GetSaveDataCheckPath(const std::string& mount_point, u32 high, u32 low) {
+static std::string GetNCCHPath(const std::string& mount_point, u32 high, u32 low) {
     return Common::StringFromFormat("%s%08x/%08x/content/00000000.app.romfs", mount_point.c_str(),
                                     high, low);
 }
 
-ArchiveFactory_SaveDataCheck::ArchiveFactory_SaveDataCheck(const std::string& nand_directory)
-    : mount_point(GetSaveDataCheckContainerPath(nand_directory)) {}
+ArchiveFactory_NCCH::ArchiveFactory_NCCH(const std::string& nand_directory)
+    : mount_point(GetNCCHContainerPath(nand_directory)) {}
 
-ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveFactory_SaveDataCheck::Open(const Path& path) {
+ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveFactory_NCCH::Open(const Path& path) {
     auto vec = path.AsBinary();
     const u32* data = reinterpret_cast<u32*>(vec.data());
-    std::string file_path = GetSaveDataCheckPath(mount_point, data[1], data[0]);
+    std::string file_path = GetNCCHPath(mount_point, data[1], data[0]);
     auto file = std::make_shared<FileUtil::IOFile>(file_path, "rb");
 
     if (!file->IsOpen()) {
@@ -45,15 +45,15 @@ ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveFactory_SaveDataCheck::Open(co
     return MakeResult<std::unique_ptr<ArchiveBackend>>(std::move(archive));
 }
 
-ResultCode ArchiveFactory_SaveDataCheck::Format(const Path& path,
-                                                const FileSys::ArchiveFormatInfo& format_info) {
-    LOG_ERROR(Service_FS, "Attempted to format a SaveDataCheck archive.");
+ResultCode ArchiveFactory_NCCH::Format(const Path& path,
+                                       const FileSys::ArchiveFormatInfo& format_info) {
+    LOG_ERROR(Service_FS, "Attempted to format a NCCH archive.");
     // TODO: Verify error code
     return ResultCode(ErrorDescription::NotAuthorized, ErrorModule::FS, ErrorSummary::NotSupported,
                       ErrorLevel::Permanent);
 }
 
-ResultVal<ArchiveFormatInfo> ArchiveFactory_SaveDataCheck::GetFormatInfo(const Path& path) const {
+ResultVal<ArchiveFormatInfo> ArchiveFactory_NCCH::GetFormatInfo(const Path& path) const {
     // TODO(Subv): Implement
     LOG_ERROR(Service_FS, "Unimplemented GetFormatInfo archive %s", GetName().c_str());
     return ResultCode(-1);

src/core/file_sys/archive_savedatacheck.h → src/core/file_sys/archive_ncch.h

@@ -14,13 +14,13 @@
 
 namespace FileSys {
 
-/// File system interface to the SaveDataCheck archive
-class ArchiveFactory_SaveDataCheck final : public ArchiveFactory {
+/// File system interface to the NCCH archive
+class ArchiveFactory_NCCH final : public ArchiveFactory {
 public:
-    ArchiveFactory_SaveDataCheck(const std::string& mount_point);
+    ArchiveFactory_NCCH(const std::string& mount_point);
 
     std::string GetName() const override {
-        return "SaveDataCheck";
+        return "NCCH";
     }
 
     ResultVal<std::unique_ptr<ArchiveBackend>> Open(const Path& path) override;

src/core/hle/service/fs/archive.cpp

@@ -15,8 +15,8 @@
 #include "common/logging/log.h"
 #include "core/file_sys/archive_backend.h"
 #include "core/file_sys/archive_extsavedata.h"
+#include "core/file_sys/archive_ncch.h"
 #include "core/file_sys/archive_savedata.h"
-#include "core/file_sys/archive_savedatacheck.h"
 #include "core/file_sys/archive_sdmc.h"
 #include "core/file_sys/archive_sdmcwriteonly.h"
 #include "core/file_sys/archive_systemsavedata.h"
@@ -554,10 +554,9 @@ void RegisterArchiveTypes() {
         LOG_ERROR(Service_FS, "Can't instantiate SharedExtSaveData archive with path %s",
                   sharedextsavedata_factory->GetMountPoint().c_str());
 
-    // Create the SaveDataCheck archive, basically a small variation of the RomFS archive
-    auto savedatacheck_factory =
-        std::make_unique<FileSys::ArchiveFactory_SaveDataCheck>(nand_directory);
-    RegisterArchiveType(std::move(savedatacheck_factory), ArchiveIdCode::SaveDataCheck);
+    // Create the NCCH archive, basically a small variation of the RomFS archive
+    auto savedatacheck_factory = std::make_unique<FileSys::ArchiveFactory_NCCH>(nand_directory);
+    RegisterArchiveType(std::move(savedatacheck_factory), ArchiveIdCode::NCCH);
 
     auto systemsavedata_factory =
         std::make_unique<FileSys::ArchiveFactory_SystemSaveData>(nand_directory);

src/core/hle/service/fs/archive.h

@@ -33,7 +33,7 @@ enum class ArchiveIdCode : u32 {
     SystemSaveData = 0x00000008,
     SDMC = 0x00000009,
     SDMCWriteOnly = 0x0000000A,
-    SaveDataCheck = 0x2345678A,
+    NCCH = 0x2345678A,
 };
 
 /// Media types for the archives