Start working on FAT formatter

2025-03-16 13:51:50 -04:00
parent 642fd5e1ed
commit 87cf731f0b
6 changed files with 127 additions and 1 deletions
--- a/BadBuilder.Formatter/FAT32FsInfo.cs
+++ b/BadBuilder.Formatter/FAT32FsInfo.cs
@@ -0,0 +1,22 @@
+using System.Runtime.InteropServices;
+
+namespace BadBuilder.Formatter
+{
+    [StructLayout(LayoutKind.Sequential, Pack = 1)]
+    internal struct FAT32FsInfo
+    {
+        public uint LeadSignature; // Should be 0x41615252
+
+        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 480)]
+        public byte[] Reserved1; // Zeros
+
+        public uint StructureSignature; // Should be 0x61417272
+        public uint FreeClusterCount;   // Number of free clusters (or 0xFFFFFFFF if unknown)
+        public uint NextFreeCluster;    // Next free cluster (or 0xFFFFFFFF if unknown)
+
+        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 12)]
+        public byte[] Reserved2; // Zeros
+
+        public uint TrailSignature; // Should be 0xAA550000
+    }
+}