1 files changed, 93 insertions, 0 deletions
diff --git a/tools/knarc/Narc.h b/tools/knarc/Narc.h
new file mode 100644
index 00000000..4516d2d5
--- /dev/null
+++ b/tools/knarc/Narc.h
@@ -0,0 +1,93 @@
+#pragma once
+
+#include <cstdint>
+#include <fstream>
+#include <string>
+#include <vector>
+
+#if __GNUC__ <= 7
+#include <experimental/filesystem>
+namespace fs = std::experimental::filesystem;
+#else
+#include <filesystem>
+namespace fs = std::filesystem;
+#endif
+
+enum class NarcError
+{
+	None,
+	InvalidInputFile,
+	InvalidHeaderId,
+	InvalidByteOrderMark,
+	InvalidVersion,
+	InvalidHeaderSize,
+	InvalidChunkCount,
+	InvalidFileAllocationTableId,
+	InvalidFileAllocationTableReserved,
+	InvalidFileNameTableId,
+	InvalidFileNameTableEntryId,
+	InvalidFileImagesId,
+	InvalidOutputFile
+};
+
+struct Header
+{
+	uint32_t Id;
+	uint16_t ByteOrderMark;
+	uint16_t Version;
+	uint32_t FileSize;
+	uint16_t ChunkSize;
+	uint16_t ChunkCount;
+};
+
+struct FileAllocationTable
+{
+	uint32_t Id;
+	uint32_t ChunkSize;
+	uint16_t FileCount;
+	uint16_t Reserved;
+};
+
+struct FileAllocationTableEntry
+{
+	uint32_t Start;
+	uint32_t End;
+};
+
+struct FileNameTable
+{
+	uint32_t Id;
+	uint32_t ChunkSize;
+};
+
+struct FileNameTableEntry
+{
+	uint32_t Offset;
+	uint16_t FirstFileId;
+	uint16_t Utility;
+};
+
+struct FileImages
+{
+	uint32_t Id;
+	uint32_t ChunkSize;
+};
+
+class Narc
+{
+	public:
+		NarcError GetError() const;
+
+		bool Pack(const fs::path& fileName, const fs::path& directory);
+		bool Unpack(const fs::path& fileName, const fs::path& directory);
+
+	private:
+		NarcError error = NarcError::None;
+
+		void AlignDword(std::ofstream& ofs, uint8_t paddingChar);
+
+		bool Cleanup(std::ifstream& ifs, const NarcError& e);
+		bool Cleanup(std::ofstream& ofs, const NarcError& e);
+
+		std::vector<fs::directory_entry> OrderedDirectoryIterator(const fs::path& path, bool recursive) const;
+};