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Code Issues Releases Activity

Correct use of .Nm. Add section number to .Xr. Add rcsid, usage(). Use err(3).

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This commit is contained in:
Philippe Charnier 1998-06-04 06:38:03 +00:00
parent f9184dd719
commit 437e1c4474
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=36626
2 changed files with 35 additions and 35 deletions
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20
sbin/badsect/badsect.8
View File

@ -10,7 +10,7 @@
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\" 3. All advertising materials mentioning features or use of this software
.\" must display the following acknowledgement:
.\" must display the following acknowledgment:
.\" This product includes software developed by the University of
.\" California, Berkeley and its contributors.
.\" 4. Neither the name of the University nor the names of its contributors
@ -30,7 +30,7 @@
.\" SUCH DAMAGE.
.\"
.\" @(#)badsect.8 8.1 (Berkeley) 6/5/93
.\" $Id: badsect.8,v 1.5 1997/06/04 06:40:30 charnier Exp $
.\" $Id: badsect.8,v 1.6 1997/10/15 17:33:47 max Exp $
.\"
.Dd June 5, 1993
.Dt BADSECT 8
@ -39,7 +39,7 @@
.Nm badsect
.Nd create files to contain bad sectors
.Sh SYNOPSIS
.Nm /sbin/badsect
.Nm badsect
.Ar bbdir sector ...
.Sh DESCRIPTION
.Nm Badsect
@ -54,7 +54,7 @@ makes the pack appear perfect, and such packs can then be copied with
.Xr dd 1 .
The technique used by this program is also less general than
bad block forwarding, as
.Nm badsect
.Nm
can't make amends for
bad blocks in the i-list of file systems or in swap areas.
.Pp
@ -66,7 +66,7 @@ formatter.
Thus to deal with a newly bad block
or on disks where the drivers
do not support the bad-blocking standard
.Nm badsect
.Nm
may be used to good effect.
.Pp
.Nm Badsect
@ -74,8 +74,8 @@ is used on a quiet file system in the following way:
First mount the file system, and change to its root directory.
Make a directory
.Li BAD
there. Run
.Nm badsect
there. Run
.Nm
giving as argument the
.Ar BAD
directory followed by
@ -105,11 +105,11 @@ system call,
creating an illegal file whose first block address is the block containing
bad sector and whose name is the bad sector number.
When it is discovered by
.Xr fsck
.Xr fsck 8
it will ask
.Dq Li "HOLD BAD BLOCK ?"
A positive response will cause
.Xr fsck
.Xr fsck 8
to convert the inode to a regular file containing the bad block.
.Sh SEE ALSO
.Xr bad144 8 ,
@ -122,7 +122,7 @@ A warning is issued if the block is already in use.
.Sh BUGS
If more than one sector which comprise a file system fragment are bad,
you should specify only one of them to
.Nm badsect ,
.Nm Ns ,
as the blocks in the bad sector files actually cover all the sectors in a
file system fragment.
.Sh HISTORY

50
sbin/badsect/badsect.c
View File

@ -38,7 +38,11 @@ static const char copyright[] =
#endif /* not lint */
#ifndef lint
#if 0
static const char sccsid[] = "@(#)badsect.c 8.1 (Berkeley) 6/5/93";
#endif
static const char rcsid[] =
"$Id$";
#endif /* not lint */
/*
@ -57,6 +61,7 @@ static const char sccsid[] = "@(#)badsect.c 8.1 (Berkeley) 6/5/93";
#include <ufs/ffs/fs.h>
#include <ufs/ufs/dinode.h>
#include <err.h>
#include <dirent.h>
#include <fcntl.h>
#include <paths.h>
@ -84,6 +89,13 @@ char buf[MAXBSIZE];
void rdfs __P((daddr_t, int, char *));
int chkuse __P((daddr_t, int));
static void
usage(void)
{
fprintf(stderr, "usage: badsect bbdir blkno ...\n");
exit(1);
}
int
main(argc, argv)
int argc;
@ -97,26 +109,18 @@ main(argc, argv)
char name[2 * MAXPATHLEN];
char *name_dir_end;
if (argc < 3) {
fprintf(stderr, "usage: badsect bbdir blkno [ blkno ]\n");
exit(1);
}
if (chdir(argv[1]) < 0 || stat(".", &stbuf) < 0) {
perror(argv[1]);
exit(2);
}
if (argc < 3)
usage();
if (chdir(argv[1]) < 0 || stat(".", &stbuf) < 0)
err(2, "%s", argv[1]);
strcpy(name, _PATH_DEV);
if ((dirp = opendir(name)) == NULL) {
perror(name);
exit(3);
}
if ((dirp = opendir(name)) == NULL)
err(3, "%s", name);
name_dir_end = name + strlen(name);
while ((dp = readdir(dirp)) != NULL) {
strcpy(name_dir_end, dp->d_name);
if (lstat(name, &devstat) < 0) {
perror(name);
exit(4);
}
if (lstat(name, &devstat) < 0)
err(4, "%s", name);
if (stbuf.st_dev == devstat.st_rdev &&
(devstat.st_mode & IFMT) == IFBLK)
break;
@ -133,10 +137,8 @@ main(argc, argv)
*/
memcpy(name_dir_end + 1, name_dir_end, strlen(name_dir_end) + 1);
*name_dir_end = 'r';
if ((fsi = open(name, O_RDONLY)) < 0) {
perror(name);
exit(6);
}
if ((fsi = open(name, O_RDONLY)) < 0)
err(6, "%s", name);
fs = &sblock;
rdfs(SBOFF, SBSIZE, (char *)fs);
dev_bsize = fs->fs_fsize / fsbtodb(fs, 1);
@ -157,7 +159,7 @@ main(argc, argv)
errs++;
}
else if (mknod(*argv, IFMT|0600, (dev_t)diskbn) < 0) {
perror(*argv);
warn("%s", *argv);
errs++;
}
}
@ -218,13 +220,11 @@ rdfs(bno, size, bf)
if (lseek(fsi, (off_t)bno * dev_bsize, SEEK_SET) < 0) {
printf("seek error: %ld\n", bno);
perror("rdfs");
exit(1);
err(1, "rdfs");
}
n = read(fsi, bf, size);
if (n != size) {
printf("read error: %ld\n", bno);
perror("rdfs");
exit(1);
err(1, "rdfs");
}
}