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pass1b.c revision 1.10 
      1 /*	$NetBSD: pass1b.c,v 1.10 1996/09/23 16:18:37 christos Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1980, 1986, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by the University of
     18  *	California, Berkeley and its contributors.
     19  * 4. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  */
     35 
     36 #ifndef lint
     37 #if 0
     38 static char sccsid[] = "@(#)pass1b.c	8.1 (Berkeley) 6/5/93";
     39 #else
     40 static char rcsid[] = "$NetBSD: pass1b.c,v 1.10 1996/09/23 16:18:37 christos Exp $";
     41 #endif
     42 #endif /* not lint */
     43 
     44 #include <sys/param.h>
     45 #include <sys/time.h>
     46 #include <ufs/ufs/dinode.h>
     47 #include <ufs/ffs/fs.h>
     48 
     49 #include <string.h>
     50 #include "fsck.h"
     51 #include "extern.h"
     52 
     53 static int	pass1bcheck __P((struct inodesc *));
     54 static  struct dups *duphead;
     55 
     56 void
     57 pass1b()
     58 {
     59 	register int c, i;
     60 	register struct dinode *dp;
     61 	struct inodesc idesc;
     62 	ino_t inumber;
     63 
     64 	memset(&idesc, 0, sizeof(struct inodesc));
     65 	idesc.id_type = ADDR;
     66 	idesc.id_func = pass1bcheck;
     67 	duphead = duplist;
     68 	inumber = 0;
     69 	for (c = 0; c < sblock.fs_ncg; c++) {
     70 		for (i = 0; i < sblock.fs_ipg; i++, inumber++) {
     71 			if (inumber < ROOTINO)
     72 				continue;
     73 			dp = ginode(inumber);
     74 			if (dp == NULL)
     75 				continue;
     76 			idesc.id_number = inumber;
     77 			if (statemap[inumber] != USTATE &&
     78 			    (ckinode(dp, &idesc) & STOP))
     79 				return;
     80 		}
     81 	}
     82 }
     83 
     84 static int
     85 pass1bcheck(idesc)
     86 	register struct inodesc *idesc;
     87 {
     88 	register struct dups *dlp;
     89 	int nfrags, res = KEEPON;
     90 	daddr_t blkno = idesc->id_blkno;
     91 
     92 	for (nfrags = idesc->id_numfrags; nfrags > 0; blkno++, nfrags--) {
     93 		if (chkrange(blkno, 1))
     94 			res = SKIP;
     95 		for (dlp = duphead; dlp; dlp = dlp->next) {
     96 			if (dlp->dup == blkno) {
     97 				blkerror(idesc->id_number, "DUP", blkno);
     98 				dlp->dup = duphead->dup;
     99 				duphead->dup = blkno;
    100 				duphead = duphead->next;
    101 			}
    102 			if (dlp == muldup)
    103 				break;
    104 		}
    105 		if (muldup == 0 || duphead == muldup->next)
    106 			return (STOP);
    107 	}
    108 	return (res);
    109 }
    110