ut_binaryFileFormat Matching

config/SOUE01/splits.txt

@@ -170,6 +170,9 @@ rvl/CX/cx.c:
 nw4r/ut/ut_list.cpp:
 	.text       start:0x8042A530 end:0x8042A850
 
+nw4r/ut/ut_binaryFileFormat.cpp:
+	.text       start:0x8042A9E0 end:0x8042AA54
+
 nw4r/db/db_directPrint.cpp:
 	.text       start:0x804342A0 end:0x80434E9C
 	.rodata     start:0x804F5D28 end:0x804F5FDC

config/SOUE01/symbols.txt

@@ -23939,7 +23939,7 @@ fn_8042A8E0 = .text:0x8042A8E0; // type:function size:0x48
 fn_8042A930 = .text:0x8042A930; // type:function size:0x44
 fn_8042A980 = .text:0x8042A980; // type:function size:0x2C
 fn_8042A9B0 = .text:0x8042A9B0; // type:function size:0x30
-fn_8042A9E0 = .text:0x8042A9E0; // type:function size:0x74
+IsValidBinaryFile__Q24nw4r2utFPCQ34nw4r2ut16BinaryFileHeaderUlUsUs = .text:0x8042A9E0; // type:function size:0x74
 fn_8042AA60 = .text:0x8042AA60; // type:function size:0x78
 fn_8042AAE0 = .text:0x8042AAE0; // type:function size:0x1C
 fn_8042AB00 = .text:0x8042AB00; // type:function size:0x1C

configure.py

@@ -318,6 +318,7 @@ config.libs = [
         "ut",
         [
             Object(Matching, "nw4r/ut/ut_list.cpp"),
+            Object(Matching, "nw4r/ut/ut_binaryFileFormat.cpp"),
         ],
     ),
     # EGG

include/nw4r/ut/ut_binaryFileFormat.h

@@ -19,8 +19,7 @@ struct BinaryFileHeader {
     u16 numBlocks;  // at 0xE
 };
 
-bool IsValidBinaryFile(const BinaryFileHeader* header, u32 magic, u16 version,
-                       u16 numBlocks);
+bool IsValidBinaryFile(const BinaryFileHeader *header, unsigned long magic, u16 version, u16 numBlocks);
 
 } // namespace ut
 } // namespace nw4r

src/nw4r/ut/ut_binaryFileFormat.cpp

@@ -0,0 +1,28 @@
+#include <nw4r/ut/ut_binaryFileFormat.h>
+
+namespace nw4r {
+namespace ut {
+
+/* 8042a9e0 */
+bool IsValidBinaryFile(const BinaryFileHeader *header, unsigned long magic, u16 version, u16 numBlocks) {
+    if (header->magic != magic) {
+        return false;
+    }
+    if (header->byteOrder != 0xFEFF) {
+        return false;
+    }
+    if (header->version != version) {
+        return false;
+    }
+    if (header->fileSize < (numBlocks * sizeof(BinaryBlockHeader) + sizeof(BinaryFileHeader))) {
+        return false;
+    }
+
+    if (header->numBlocks < numBlocks) {
+        return false;
+    }
+    return true;
+}
+
+} // namespace ut
+} // namespace nw4r