1 files changed, 63 insertions, 0 deletions
diff --git a/src/revolution/homebuttonLib/nw4hbm/ut/ut_binaryFileFormat.cpp b/src/revolution/homebuttonLib/nw4hbm/ut/ut_binaryFileFormat.cpp
new file mode 100644
index 0000000000..4bc3a7b181
--- /dev/null
+++ b/src/revolution/homebuttonLib/nw4hbm/ut/ut_binaryFileFormat.cpp
@@ -0,0 +1,63 @@
+#include "binaryFileFormat.h"
+
+#include "../db/assert.h"
+
+namespace nw4hbm {
+    namespace ut {
+
+        bool IsValidBinaryFile(const BinaryFileHeader* header, u32 signature, u16 version,
+                               u16 minBlocks) {
+            NW4HBM_ASSERT_VALID_PTR(48, header);
+
+            if (header->signature != signature) {
+                s8 signature1 = (header->signature >> 24) & 0xFF;
+                s8 signature2 = (header->signature >> 16) & 0xFF;
+                s8 signature3 = (header->signature >> 8) & 0xFF;
+                s8 signature4 = (header->signature & 0xFF);
+
+                s8 signature5 = (signature >> 24) & 0xFF;
+                s8 signature6 = (signature >> 16) & 0xFF;
+                s8 signature7 = (signature >> 8) & 0xFF;
+                s8 signature8 = (signature & 0xFF);
+
+                NW4R_DB_WARNING(60, false,
+                                "Signature check failed ('%c%c%c%c' must be '%c%c%c%c').",
+                                signature1, signature2, signature3, signature4, signature5,
+                                signature6, signature7, signature8);
+                return false;
+            }
+
+            // U+FEFF * BYTE ORDER MARK
+            if (header->byteOrder != 0xFEFF) {
+                NW4R_DB_WARNING(65, false, "Unsupported byte order.");
+                return false;
+            }
+
+            if (header->version != version) {
+                NW4R_DB_WARNING(75, false, "Version check faild ('%d.%d' must be '%d.%d').",
+                                (header->version >> 8) & 0xFF, header->version & 0xFF,
+                                (version >> 8) & 0xFF, version & 0xFF);
+                return false;
+            }
+
+            if (header->fileSize < sizeof(*header) + sizeof(BinaryBlockHeader) * minBlocks) {
+                NW4R_DB_WARNING(80, false, "Too small file size(=%d).", header->fileSize);
+                return false;
+            }
+
+            if (header->dataBlocks < minBlocks) {
+                NW4R_DB_WARNING(85, false, "Too small number of data blocks(=%d).",
+                                header->dataBlocks);
+                return false;
+            }
+
+            return true;
+        }
+
+        // required to match .data
+        void dummy(const BinaryFileHeader* fileHeader) {
+            NW4HBM_ASSERT_VALID_PTR(0, fileHeader);
+        }
+
+    }  // namespace ut
+}  // namespace nw4hbm