From 2059697c29c926c3ad42efb61993baf2723f0b0e Mon Sep 17 00:00:00 2001
From: Thomas Bushnell <thomas@gnu.org>
Date: Thu, 3 Apr 1997 23:28:32 +0000
Subject: Initial Revision

---
 serverboot/minix_ffs_compat.c | 62 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 serverboot/minix_ffs_compat.c

(limited to 'serverboot/minix_ffs_compat.c')

diff --git a/serverboot/minix_ffs_compat.c b/serverboot/minix_ffs_compat.c
new file mode 100644
index 00000000..7d493520
--- /dev/null
+++ b/serverboot/minix_ffs_compat.c
@@ -0,0 +1,62 @@
+/*
+ * BSD FFS like functions used to ease porting bootstrap to MINIX fs
+ * Copyright (C) 1994 Csizmazia Balazs, University ELTE, Hungary
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <device/device_types.h>
+#include <device/device.h>
+
+#include <mach/mach_traps.h>
+#include <mach/mach_interface.h>
+
+#include <file_io.h>
+
+#define	MINIX_BLOCK_SIZE	1024
+
+int minix_ino2blk (struct minix_super_block *fs, int ino)
+{
+        int blk;
+
+	blk=0 /* it's Mach */+2 /* boot+superblock */ + fs->s_imap_blocks +
+		fs->s_zmap_blocks + (ino-1)/MINIX_INODES_PER_BLOCK;
+        return blk;
+}
+
+int minix_fsbtodb (struct minix_super_block *fs, int b)
+{
+        return (b * MINIX_BLOCK_SIZE) / DEV_BSIZE;
+}
+
+int minix_itoo (struct minix_super_block *fs, int ino)
+{
+	return (ino - 1) % MINIX_INODES_PER_BLOCK;
+}
+
+int minix_blkoff (struct minix_super_block * fs, vm_offset_t offset)
+{
+	return offset % MINIX_BLOCK_SIZE;
+}
+
+int minix_lblkno (struct minix_super_block * fs, vm_offset_t offset)
+{
+	return offset / MINIX_BLOCK_SIZE;
+}
+
+int minix_blksize (struct minix_super_block *fs, struct file *fp, minix_daddr_t file_block)
+{
+	return MINIX_BLOCK_SIZE;
+}
-- 
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