- Tree cleanups proposed on the mailing list. Move all non-Core OS modules to rosapps. Tests were already moved by Fireball to rostests.

svn path=/trunk/; revision=26033

rosapps/ext2/file.c

@@ -0,0 +1,61 @@
+/*
+ * COPYRIGHT:        See COPYING in the top level directory
+ * PROJECT:          ReactOS kernel
+ * FILE:             services/fs/ext2/super.c
+ * PURPOSE:          ext2 filesystem
+ * PROGRAMMER:       David Welch (welch@mcmail.com)
+ * UPDATE HISTORY:
+ */
+
+/* INCLUDES *****************************************************************/
+
+#include <ntddk.h>
+
+#define NDEBUG
+#include <debug.h>
+
+#include "ext2fs.h"
+
+/* FUNCTIONS ****************************************************************/
+
+#define addr_per_block (BLOCKSIZE / sizeof(ULONG))
+
+ULONG Ext2BlockMap(PDEVICE_EXTENSION DeviceExt,
+		  struct ext2_inode* inode,
+		  ULONG offset)
+{
+   ULONG block;
+   PULONG TempBuffer;
+   BOOL b;
+
+   DPRINT("Ext2BlockMap(DeviceExt %x, inode %x, offset %d)\n",
+	   DeviceExt,inode,offset);
+   if (offset < EXT2_NDIR_BLOCKS)
+     {
+	block = inode->i_block[offset];
+	DPRINT("block %d\n",block);
+	return(block);
+     }
+   offset = offset - EXT2_NDIR_BLOCKS;
+   if (offset < addr_per_block)
+     {
+	block = inode->i_block[EXT2_IND_BLOCK];
+	TempBuffer = ExAllocatePool(NonPagedPool, BLOCKSIZE);
+	b = Ext2ReadSectors(DeviceExt->StorageDevice,
+			    block,
+			    1,
+			    TempBuffer);
+	if (!b)
+	  {
+	     DbgPrint("ext2fs:%s:%d: Disk io failed\n", __FILE__, __LINE__);
+	     return(0);
+	  }
+	block = TempBuffer[offset];
+	ExFreePool(TempBuffer);
+	return(block);
+     }
+   offset = offset - addr_per_block;
+   DbgPrint("Failed at %s:%d\n",__FILE__,__LINE__);
+   for(;;);
+}
+