check for improper directory offsets; recover gracefully from read errors
[unix-history] / usr / src / sbin / fsck / pass1b.c
CommitLineData
7fa08060 1#ifndef lint
a50c3bff 2static char version[] = "@(#)pass1b.c 3.2 (Berkeley) %G%";
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3#endif
4
5#include <sys/param.h>
6#include <sys/inode.h>
7#include <sys/fs.h>
8#include "fsck.h"
9
10int pass1bcheck();
11
12pass1b()
13{
14 register int c, i;
15 register DINODE *dp;
16 struct inodesc idesc;
17 ino_t inumber;
18
19 bzero((char *)&idesc, sizeof(struct inodesc));
20 idesc.id_type = ADDR;
21 idesc.id_func = pass1bcheck;
22 inumber = 0;
23 for (c = 0; c < sblock.fs_ncg; c++) {
24 for (i = 0; i < sblock.fs_ipg; i++, inumber++) {
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KM
25 if (inumber < ROOTINO)
26 continue;
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27 dp = ginode(inumber);
28 if (dp == NULL)
29 continue;
30 idesc.id_number = inumber;
31 if (statemap[inumber] != USTATE &&
32 (ckinode(dp, &idesc) & STOP))
33 goto out1b;
34 }
35 }
36out1b:
37 flush(&dfile, &inoblk);
38}
39
40pass1bcheck(idesc)
41 register struct inodesc *idesc;
42{
43 register daddr_t *dlp;
44 int nfrags, res = KEEPON;
45 daddr_t blkno = idesc->id_blkno;
46
47 for (nfrags = idesc->id_numfrags; nfrags > 0; blkno++, nfrags--) {
48 if (outrange(blkno, 1))
49 res = SKIP;
50 for (dlp = duplist; dlp < muldup; dlp++)
51 if (*dlp == blkno) {
52 blkerr(idesc->id_number, "DUP", blkno);
53 *dlp = *--muldup;
54 *muldup = blkno;
55 if (muldup == duplist)
56 return (STOP);
57 }
58 }
59 return (res);
60}