Merge pull request #1608 from DarkLordZach/save-data-reader

[ns|fsp_srv]: Implement various functions to boot Checkpoint

4 files changed, 28 insertions, 14 deletions

diff --git a/src/core/file_sys/control_metadata.cpp b/src/core/file_sys/control_metadata.cpp
index a012c2be9..c8fa912bf 100644
--- a/src/core/file_sys/control_metadata.cpp
+++ b/src/core/file_sys/control_metadata.cpp
@@ -66,4 +66,10 @@ std::string NACP::GetVersionString() const {
     return Common::StringFromFixedZeroTerminatedBuffer(raw->version_string.data(),
                                                        raw->version_string.size());
 }
+
+std::vector<u8> NACP::GetRawBytes() const {
+    std::vector<u8> out(sizeof(RawNACP));
+    std::memcpy(out.data(), raw.get(), sizeof(RawNACP));
+    return out;
+}
 } // namespace FileSys
diff --git a/src/core/file_sys/control_metadata.h b/src/core/file_sys/control_metadata.h
index 141f7e056..bfaad46b4 100644
--- a/src/core/file_sys/control_metadata.h
+++ b/src/core/file_sys/control_metadata.h
@@ -81,6 +81,7 @@ public:
     u64 GetTitleId() const;
     u64 GetDLCBaseTitleId() const;
     std::string GetVersionString() const;
+    std::vector<u8> GetRawBytes() const;
 
 private:
     std::unique_ptr<RawNACP> raw;
diff --git a/src/core/file_sys/savedata_factory.cpp b/src/core/file_sys/savedata_factory.cpp
index ef1aaebbb..5434f2149 100644
--- a/src/core/file_sys/savedata_factory.cpp
+++ b/src/core/file_sys/savedata_factory.cpp
@@ -83,28 +83,32 @@ ResultVal<VirtualDir> SaveDataFactory::Open(SaveDataSpaceId space, SaveDataDescr
     return MakeResult<VirtualDir>(std::move(out));
 }
 
-std::string SaveDataFactory::GetFullPath(SaveDataSpaceId space, SaveDataType type, u64 title_id,
-                                         u128 user_id, u64 save_id) {
-    // According to switchbrew, if a save is of type SaveData and the title id field is 0, it should
-    // be interpreted as the title id of the current process.
-    if (type == SaveDataType::SaveData && title_id == 0)
-        title_id = Core::CurrentProcess()->GetTitleID();
-
-    std::string out;
+VirtualDir SaveDataFactory::GetSaveDataSpaceDirectory(SaveDataSpaceId space) const {
+    return dir->GetDirectoryRelative(GetSaveDataSpaceIdPath(space));
+}
 
+std::string SaveDataFactory::GetSaveDataSpaceIdPath(SaveDataSpaceId space) {
     switch (space) {
     case SaveDataSpaceId::NandSystem:
-        out = "/system/";
-        break;
+        return "/system/";
     case SaveDataSpaceId::NandUser:
-        out = "/user/";
-        break;
+        return "/user/";
     case SaveDataSpaceId::TemporaryStorage:
-        out = "/temp/";
-        break;
+        return "/temp/";
     default:
         ASSERT_MSG(false, "Unrecognized SaveDataSpaceId: {:02X}", static_cast<u8>(space));
+        return "/unrecognized/"; ///< To prevent corruption when ignoring asserts.
     }
+}
+
+std::string SaveDataFactory::GetFullPath(SaveDataSpaceId space, SaveDataType type, u64 title_id,
+                                         u128 user_id, u64 save_id) {
+    // According to switchbrew, if a save is of type SaveData and the title id field is 0, it should
+    // be interpreted as the title id of the current process.
+    if (type == SaveDataType::SaveData && title_id == 0)
+        title_id = Core::CurrentProcess()->GetTitleID();
+
+    std::string out = GetSaveDataSpaceIdPath(space);
 
     switch (type) {
     case SaveDataType::SystemSaveData:
diff --git a/src/core/file_sys/savedata_factory.h b/src/core/file_sys/savedata_factory.h
index d69ef6741..2a0088040 100644
--- a/src/core/file_sys/savedata_factory.h
+++ b/src/core/file_sys/savedata_factory.h
@@ -52,6 +52,9 @@ public:
 
     ResultVal<VirtualDir> Open(SaveDataSpaceId space, SaveDataDescriptor meta);
 
+    VirtualDir GetSaveDataSpaceDirectory(SaveDataSpaceId space) const;
+
+    static std::string GetSaveDataSpaceIdPath(SaveDataSpaceId space);
     static std::string GetFullPath(SaveDataSpaceId space, SaveDataType type, u64 title_id,
                                    u128 user_id, u64 save_id);