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The fsdb(8) utility uses the fsck_ffs(8) disk I/O interfaces, so

Browse Source 
switch from using libufs's bread() to using fsck_ffs's getdatablk()
when importing tools/diag/prtblnos's prtblknos().

Sponsored by: Netflix
This commit is contained in:
Kirk McKusick 2020-09-19 20:06:12 +00:00
parent 9ad1d357e0
commit 68d7185b64
5 changed files with 33 additions and 18 deletions
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2
sbin/fsdb/fsdb.c
View File

@ -109,6 +109,8 @@ main(int argc, char *argv[])
sblock_init();
if (!setup(fsys))
errx(1, "cannot set up file system `%s'", fsys);
if (fswritefd < 0)
nflag++;
printf("%s file system `%s'\nLast Mounted on %s\n",
nflag? "Examining": "Editing", fsys, sblock.fs_fsmnt);
rval = cmdloop();

4
sbin/fsdb/fsdbutil.c
View File

@ -53,7 +53,7 @@ static const char rcsid[] =
#include "fsdb.h"
#include "fsck.h"
void prtblknos(struct uufsd *disk, union dinode *dp);
void prtblknos(struct fs *fs, union dinode *dp);
char **
crack(char *line, int *argc)
@ -236,7 +236,7 @@ printactive(int doblocks)
case IFSOCK:
case IFIFO:
if (doblocks)
prtblknos(&disk, curinode);
prtblknos(&sblock, curinode);
else
printstat("current inode", curinum, curinode);
break;

2
tools/diag/prtblknos/Makefile
View File

@ -11,6 +11,8 @@ LIBADD+=ufs
WARNS?= 3
CFLAGS+=-DPRTBLKNOS
test: ${PROG}
./${PROG} > a

7
tools/diag/prtblknos/main.c
View File

@ -39,14 +39,15 @@ union dinode {
struct ufs2_dinode *dp2;
};
void prtblknos(struct uufsd *disk, union dinode *dp);
void prtblknos(struct fs *fs, union dinode *dp);
struct uufsd disk;
int
main(argc, argv)
int argc;
char *argv[];
{
struct uufsd disk;
union dinodep dp;
struct fs *fs;
struct stat sb;
@ -102,7 +103,7 @@ main(argc, argv)
warn("Read of inode %jd on %s failed: %s",
(intmax_t)inonum, fsname, disk.d_error);
prtblknos(&disk, (union dinode *)dp.dp1);
prtblknos(fs, (union dinode *)dp.dp1);
}
exit(0);
}

36
tools/diag/prtblknos/prtblknos.c
View File

@ -31,32 +31,37 @@
#include <err.h>
#include <stdio.h>
#include <string.h>
#include <libufs.h>
#ifdef PRTBLKNOS
union dinode {
struct ufs1_dinode dp1;
struct ufs2_dinode dp2;
};
extern struct uufsd disk;
#else /* used by fsdb */
#include <fsck.h>
static struct bufarea *bp;
#endif
void prtblknos(struct uufsd *disk, union dinode *dp);
void prtblknos(struct fs *fs, union dinode *dp);
static const char *distance(struct fs *, ufs2_daddr_t, ufs2_daddr_t);
static void printblk(struct fs *, ufs_lbn_t, ufs2_daddr_t, int, ufs_lbn_t);
static void indirprt(struct uufsd *, int, ufs_lbn_t, ufs_lbn_t, ufs2_daddr_t,
static void indirprt(struct fs *, int, ufs_lbn_t, ufs_lbn_t, ufs2_daddr_t,
ufs_lbn_t);
void
prtblknos(disk, dp)
struct uufsd *disk;
prtblknos(fs, dp)
struct fs *fs;
union dinode *dp;
{
int i, mode, frags;
ufs_lbn_t lbn, lastlbn, len, blksperindir;
ufs2_daddr_t blkno;
struct fs *fs;
off_t size;
fs = (struct fs *)&disk->d_sb;
if (fs->fs_magic == FS_UFS1_MAGIC) {
size = dp->dp1.di_size;
mode = dp->dp1.di_mode;
@ -138,7 +143,7 @@ prtblknos(disk, dp)
blkno = dp->dp1.di_ib[i];
else
blkno = dp->dp2.di_ib[i];
indirprt(disk, i, blksperindir, lbn, blkno, lastlbn);
indirprt(fs, i, blksperindir, lbn, blkno, lastlbn);
blksperindir *= NINDIR(fs);
lbn += blksperindir;
len -= blksperindir;
@ -149,8 +154,8 @@ prtblknos(disk, dp)
}
static void
indirprt(disk, level, blksperindir, lbn, blkno, lastlbn)
struct uufsd *disk;
indirprt(fs, level, blksperindir, lbn, blkno, lastlbn)
struct fs *fs;
int level;
ufs_lbn_t blksperindir;
ufs_lbn_t lbn;
@ -158,10 +163,8 @@ indirprt(disk, level, blksperindir, lbn, blkno, lastlbn)
ufs_lbn_t lastlbn;
{
char indir[MAXBSIZE];
struct fs *fs;
ufs_lbn_t i, last;
fs = (struct fs *)&disk->d_sb;
if (blkno == 0) {
printblk(fs, lbn, blkno,
blksperindir * NINDIR(fs) * fs->fs_frag, lastlbn);
@ -169,7 +172,14 @@ indirprt(disk, level, blksperindir, lbn, blkno, lastlbn)
}
printblk(fs, lbn, blkno, fs->fs_frag, -level);
/* read in the indirect block. */
if (bread(disk, fsbtodb(fs, blkno), indir, fs->fs_bsize) == -1) {
#ifdef PRTBLKNOS
if (bread(&disk, fsbtodb(fs, blkno), indir, fs->fs_bsize) == -1) {
#else /* used by fsdb */
bp = getdatablk(blkno, fs->fs_bsize, BT_LEVEL1 + level);
if (bp->b_errs == 0) {
memcpy(indir, bp->b_un.b_buf, fs->fs_bsize);
} else {
#endif
warn("Read of indirect block %jd failed", (intmax_t)blkno);
/* List the unreadable part as a hole */
printblk(fs, lbn, 0,
@ -193,7 +203,7 @@ indirprt(disk, level, blksperindir, lbn, blkno, lastlbn)
blkno = ((ufs1_daddr_t *)indir)[i];
else
blkno = ((ufs2_daddr_t *)indir)[i];
indirprt(disk, level - 1, blksperindir / NINDIR(fs),
indirprt(fs, level - 1, blksperindir / NINDIR(fs),
lbn + blksperindir * i, blkno, lastlbn);
}
}