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pass1b.c revision 1.1.1.1 
      1 /*
      2  * Copyright (c) 1980, 1986 The Regents of the University of California.
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  * 3. All advertising materials mentioning features or use of this software
     14  *    must display the following acknowledgement:
     15  *	This product includes software developed by the University of
     16  *	California, Berkeley and its contributors.
     17  * 4. Neither the name of the University nor the names of its contributors
     18  *    may be used to endorse or promote products derived from this software
     19  *    without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  * SUCH DAMAGE.
     32  */
     33 
     34 #ifndef lint
     35 static char sccsid[] = "@(#)pass1b.c	5.8 (Berkeley) 7/20/90";
     36 #endif /* not lint */
     37 
     38 #include <sys/param.h>
     39 #include <ufs/dinode.h>
     40 #include <ufs/fs.h>
     41 #include <string.h>
     42 #include "fsck.h"
     43 
     44 int	pass1bcheck();
     45 static  struct dups *duphead;
     46 
     47 pass1b()
     48 {
     49 	register int c, i;
     50 	register struct dinode *dp;
     51 	struct inodesc idesc;
     52 	ino_t inumber;
     53 
     54 	bzero((char *)&idesc, sizeof(struct inodesc));
     55 	idesc.id_type = ADDR;
     56 	idesc.id_func = pass1bcheck;
     57 	duphead = duplist;
     58 	inumber = 0;
     59 	for (c = 0; c < sblock.fs_ncg; c++) {
     60 		for (i = 0; i < sblock.fs_ipg; i++, inumber++) {
     61 			if (inumber < ROOTINO)
     62 				continue;
     63 			dp = ginode(inumber);
     64 			if (dp == NULL)
     65 				continue;
     66 			idesc.id_number = inumber;
     67 			if (statemap[inumber] != USTATE &&
     68 			    (ckinode(dp, &idesc) & STOP))
     69 				return;
     70 		}
     71 	}
     72 }
     73 
     74 pass1bcheck(idesc)
     75 	register struct inodesc *idesc;
     76 {
     77 	register struct dups *dlp;
     78 	int nfrags, res = KEEPON;
     79 	daddr_t blkno = idesc->id_blkno;
     80 
     81 	for (nfrags = idesc->id_numfrags; nfrags > 0; blkno++, nfrags--) {
     82 		if (chkrange(blkno, 1))
     83 			res = SKIP;
     84 		for (dlp = duphead; dlp; dlp = dlp->next) {
     85 			if (dlp->dup == blkno) {
     86 				blkerror(idesc->id_number, "DUP", blkno);
     87 				dlp->dup = duphead->dup;
     88 				duphead->dup = blkno;
     89 				duphead = duphead->next;
     90 			}
     91 			if (dlp == muldup)
     92 				break;
     93 		}
     94 		if (muldup == 0 || duphead == muldup->next)
     95 			return (STOP);
     96 	}
     97 	return (res);
     98 }
     99