Home | History | Annotate | Line # | Download | only in fsck_ext2fs
pass1b.c revision 1.4 
      1 /*	$NetBSD: pass1b.c,v 1.4 2003/10/05 17:48:49 bouyer 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. Neither the name of the University nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  */
     31 
     32 /*
     33  * Copyright (c) 1997 Manuel Bouyer.
     34  *
     35  * Redistribution and use in source and binary forms, with or without
     36  * modification, are permitted provided that the following conditions
     37  * are met:
     38  * 1. Redistributions of source code must retain the above copyright
     39  *    notice, this list of conditions and the following disclaimer.
     40  * 2. Redistributions in binary form must reproduce the above copyright
     41  *    notice, this list of conditions and the following disclaimer in the
     42  *    documentation and/or other materials provided with the distribution.
     43  * 3. All advertising materials mentioning features or use of this software
     44  *    must display the following acknowledgement:
     45  *	This product includes software developed by Manuel Bouyer.
     46  * 4. The name of the author may not be used to endorse or promote products
     47  *    derived from this software without specific prior written permission.
     48  *
     49  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     50  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     51  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     52  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     53  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     54  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     55  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     56  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     57  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     58  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     59  * SUCH DAMAGE.
     60  */
     61 
     62 #include <sys/cdefs.h>
     63 #ifndef lint
     64 #if 0
     65 static char sccsid[] = "@(#)pass1b.c	8.1 (Berkeley) 6/5/93";
     66 #else
     67 __RCSID("$NetBSD: pass1b.c,v 1.4 2003/10/05 17:48:49 bouyer Exp $");
     68 #endif
     69 #endif /* not lint */
     70 
     71 #include <sys/param.h>
     72 #include <sys/time.h>
     73 #include <ufs/ext2fs/ext2fs_dinode.h>
     74 #include <ufs/ext2fs/ext2fs.h>
     75 
     76 #include <string.h>
     77 #include "fsck.h"
     78 #include "extern.h"
     79 
     80 static int	pass1bcheck __P((struct inodesc *));
     81 static  struct dups *duphead;
     82 
     83 void
     84 pass1b()
     85 {
     86 	int c, i;
     87 	struct ext2fs_dinode *dp;
     88 	struct inodesc idesc;
     89 	ino_t inumber;
     90 
     91 	memset(&idesc, 0, sizeof(struct inodesc));
     92 	idesc.id_type = ADDR;
     93 	idesc.id_func = pass1bcheck;
     94 	duphead = duplist;
     95 	inumber = 0;
     96 	for (c = 0; c < sblock.e2fs_ncg; c++) {
     97 		for (i = 0; i < sblock.e2fs.e2fs_ipg; i++, inumber++) {
     98 			if ((inumber < EXT2_FIRSTINO) && (inumber != EXT2_ROOTINO))
     99 				continue;
    100 			dp = ginode(inumber);
    101 			if (dp == NULL)
    102 				continue;
    103 			idesc.id_number = inumber;
    104 			if (statemap[inumber] != USTATE &&
    105 			    (ckinode(dp, &idesc) & STOP))
    106 				return;
    107 		}
    108 	}
    109 }
    110 
    111 static int
    112 pass1bcheck(idesc)
    113 	struct inodesc *idesc;
    114 {
    115 	struct dups *dlp;
    116 	int nfrags, res = KEEPON;
    117 	daddr_t blkno = idesc->id_blkno;
    118 
    119 	for (nfrags = idesc->id_numfrags; nfrags > 0; blkno++, nfrags--) {
    120 		if (chkrange(blkno, 1))
    121 			res = SKIP;
    122 		for (dlp = duphead; dlp; dlp = dlp->next) {
    123 			if (dlp->dup == blkno) {
    124 				blkerror(idesc->id_number, "DUP", blkno);
    125 				dlp->dup = duphead->dup;
    126 				duphead->dup = blkno;
    127 				duphead = duphead->next;
    128 			}
    129 			if (dlp == muldup)
    130 				break;
    131 		}
    132 		if (muldup == 0 || duphead == muldup->next)
    133 			return (STOP);
    134 	}
    135 	return (res);
    136 }
    137