From a742287f5fad240b595935752c676e431a071a41 Mon Sep 17 00:00:00 2001
From: "Michael I. Bushnell" <mib@gnu.org>
Date: Fri, 7 Oct 1994 19:23:43 +0000
Subject: Initial revision

---
 ufs-fsck/pass1.c | 95 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 95 insertions(+)
 create mode 100644 ufs-fsck/pass1.c

(limited to 'ufs-fsck')

diff --git a/ufs-fsck/pass1.c b/ufs-fsck/pass1.c
new file mode 100644
index 00000000..650af963
--- /dev/null
+++ b/ufs-fsck/pass1.c
@@ -0,0 +1,95 @@
+/* Pass one of GNU fsck
+   Copyright (C) 1994 Free Software Foundation, Inc.
+   Written by Michael I. Bushnell.
+
+   This file is part of the GNU Hurd.
+
+   The GNU Hurd 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, or (at
+   your option) any later version.
+
+   The GNU Hurd 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 "fsck.h"
+
+/* Find all the blocks in use by files and filesystem reserved blocks. 
+   Set them in the global block map.  For each file, if a block is found
+   allocated twice, then record the block and inode in DUPLIST.
+   Set ISTATE to be USTATE, FSTATE, or DSTATE as appropriate */
+pass1 ()
+{
+  ino_t number;			/* inode number */
+  ino_t i;			/* cg-relative inode number */
+  int cg;			/* cylinder group number */
+
+  /* Account for blocks used by meta data */
+  for (cg = 0, cg < sblock.fs_ncg; cg++)
+    {
+      daddr_t firstdata, firstcgblock, bno;
+      
+      /* Each cylinder group past the first reserves data
+	 from its cylinder group copy to (but not including)
+	 the first datablock. 
+
+	 The first, however, reserves from the very front of the
+	 cylinder group (thus including the boot block), and it also
+	 reserves the data blocks holding the csum information. */
+      firstdata = cgdmin (&sblock, cg);
+      if (cg == 0)
+	{
+	  firstcgblock = cgbase (&sblock, cg);
+	  firstdata += howmany (sblock.fs_cssize, sblock.fs_fsize);
+	}
+      else
+	firstdata = cgsblock (&sblock, cg);
+
+      /* Mark the blocks set */
+      for (bno = firstcgblock; bno < firstdata; bno++)
+	set_block_used (bno):
+    }
+  
+  /* Loop through each inode, doing initial checks */
+  for (number = 0, cg = 0; cg < sblock.fs_ncg; cg++)
+    for (i = 0; i < sblock.fs_ipg; i++, number++)
+      {
+	struct dinode *dp;
+	mode_t mode;
+
+	dp = getinode (number);
+	mode = DI_MODE (dp) & IFMT;
+	
+	/* If the node is not allocated, then make sure it's
+	   properly clear */
+	if (mode == 0)
+	  {
+	    if (bcmp (dp->di_db, zino.di_db, NDADDR * sizeof (daddr_t))
+		|| bcmp (dp->di_ib, zino->di_ix, NIADDR * sizeof (daddr_t))
+		|| dp->di_trans
+		|| DI_MODE (dp)
+		|| dp->di_size)
+	      {
+		pwarn ("PARTIALLY ALLOCATED INODE I=%lu", number);
+		if (preen || reply ("CLEAR"))
+		  {
+		    if (preen)
+		      printf (" (CLEARED)\n");
+		    clear_inode (dp);
+		  }
+		
+		    
+		    
+		    
+
+
+
+		    
-- 
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