Added msdosfs.

Obtained from: NetBSD

1 files changed, 70 insertions, 0 deletions

diff --git a/sys/msdosfs/bootsect.h b/sys/msdosfs/bootsect.h
new file mode 100644
index 0000000..099b15f
--- /dev/null
+++ b/sys/msdosfs/bootsect.h
@@ -0,0 +1,70 @@
+/*	$Id$ */
+/*	$NetBSD: bootsect.h,v 1.4 1994/06/29 06:35:28 cgd Exp $	*/
+
+/*
+ * Written by Paul Popelka (paulp@uts.amdahl.com)
+ * 
+ * You can do anything you want with this software, just don't say you wrote
+ * it, and don't remove this notice.
+ * 
+ * This software is provided "as is".
+ * 
+ * The author supplies this software to be publicly redistributed on the
+ * understanding that the author is not responsible for the correct
+ * functioning of this software in any circumstances and is not liable for
+ * any damages caused by this software.
+ * 
+ * October 1992
+ */
+
+/*
+ * Format of a boot sector.  This is the first sector on a DOS floppy disk
+ * or the fist sector of a partition on a hard disk.  But, it is not the
+ * first sector of a partitioned hard disk.
+ */
+struct bootsector33 {
+	u_char bsJump[3];	/* jump instruction E9xxxx or EBxx90 */
+	char bsOemName[8];	/* OEM name and version */
+	char bsBPB[19];		/* BIOS parameter block */
+	char bsDriveNumber;	/* drive number (0x80) */
+	char bsBootCode[474];	/* pad so structure is 512 bytes long */
+	u_short bsBootSectSig;
+#define	BOOTSIG	0xaa55
+};
+
+struct bootsector50 {
+	u_char bsJump[3];	/* jump instruction E9xxxx or EBxx90 */
+	char bsOemName[8];	/* OEM name and version */
+	char bsBPB[25];		/* BIOS parameter block */
+	char bsDriveNumber;	/* drive number (0x80) */
+	char bsReserved1;	/* reserved */
+	char bsBootSignature;	/* extended boot signature (0x29) */
+#define	EXBOOTSIG	0x29
+	char bsVolumeID[4];	/* volume ID number */
+	char bsVolumeLabel[11];	/* volume label */
+	char bsFileSysType[8];	/* file system type (FAT12 or FAT16) */
+	char bsBootCode[448];	/* pad so structure is 512 bytes long */
+	u_short bsBootSectSig;
+#define	BOOTSIG	0xaa55
+};
+
+union bootsector {
+	struct bootsector33 bs33;
+	struct bootsector50 bs50;
+};
+
+/*
+ * Shorthand for fields in the bpb.
+ */
+#define	bsBytesPerSec	bsBPB.bpbBytesPerSec
+#define	bsSectPerClust	bsBPB.bpbSectPerClust
+#define	bsResSectors	bsBPB.bpbResSectors
+#define	bsFATS		bsBPB.bpbFATS
+#define	bsRootDirEnts	bsBPB.bpbRootDirEnts
+#define	bsSectors	bsBPB.bpbSectors
+#define	bsMedia		bsBPB.bpbMedia
+#define	bsFATsecs	bsBPB.bpbFATsecs
+#define	bsSectPerTrack	bsBPB.bpbSectPerTrack
+#define	bsHeads		bsBPB.bpbHeads
+#define	bsHiddenSecs	bsBPB.bpbHiddenSecs
+#define	bsHugeSectors	bsBPB.bpbHugeSectors