Merge Lite2 changes (rather bigish, the dump/restore folks should check)

This commit is contained in:
Peter Wemm 1997-03-11 12:09:50 +00:00
parent 33aa65742b
commit a37c38b8d8
Notes: svn2git 2020-12-20 02:59:44 +00:00
svn path=/head/; revision=23672
6 changed files with 230 additions and 182 deletions

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@ -30,10 +30,10 @@
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\" @(#)dump.8 8.1 (Berkeley) 6/16/93
.\" $Id$
.\" @(#)dump.8 8.3 (Berkeley) 5/1/95
.\" $Id: dump.8,v 1.12 1997/02/22 14:32:16 peter Exp $
.\"
.Dd June 16, 1993
.Dd May 1, 1995
.Dt DUMP 8
.Os BSD 4
.Sh NAME
@ -41,8 +41,23 @@
.Nd filesystem backup
.Sh SYNOPSIS
.Nm dump
.Op Cm 0123456789BTWabcdfhnsu Op Ar argument ...
.Op Ar filesystem
.Op Fl 0123456789acnu
.Op Fl B Ar records
.Op Fl b Ar blocksize
.Op Fl d Ar density
.Op Fl f Ar file
.Op Fl h Ar level
.Op Fl s Ar feet
.Op Fl T Ar date
.Ar filesystem
.Nm dump
.Op Fl W Li \&| Fl w
.Pp
.in -\\n(iSu
(The
.Bx 4.3
option syntax is implemented for backward compatibility, but
is not documented here.)
.Sh DESCRIPTION
.Nm Dump
examines files
@ -51,7 +66,7 @@ and determines which files
need to be backed up. These files
are copied to the given disk, tape or other
storage medium for safe keeping (see the
.Cm f
.Fl f
option below for doing remote backups).
A dump that is larger than the output medium is broken into
multiple volumes.
@ -70,26 +85,26 @@ By default, the same output file name is used for each volume
after prompting the operator to change media.
.Pp
The following options are supported by
.Nm dump:
.Bl -tag -width 4n
.It Cm 0\-9
.Nm dump :
.Bl -tag -width Ds
.It Fl 0\-9
Dump levels.
A level 0, full backup,
guarantees the entire file system is copied
(but see also the
.Cm h
.Fl h
option below).
A level number above 0,
incremental backup,
tells dump to
copy all files new or modified since the
last dump of the same or lower level. The default
level is 9.
.It Cm B Ar records
last dump of the same or lower level.
The default level is 9.
.It Fl B Ar records
The number of dump records per volume.
This option overrides the calculation of tape size
based on length and density.
.It Cm a
.It Fl a
.Dq auto-size .
Bypass all tape length considerations, and enforce writing
until an end-of-media indication is returned. This fits best
@ -97,12 +112,12 @@ for most modern tape drives. Use of this option is particularly
recommended when appending to an existing tape, or using a tape
drive with hardware compression (where you can never be sure about
the compression ratio).
.It Cm b Ar blocksize
.It Fl b Ar blocksize
The number of kilobytes per dump record.
.It Cm c
.It Fl c
Change the defaults for use with a cartridge tape drive, with a density
of 8000 bpi, and a length of 1700 feet.
.It Cm h Ar level
.It Fl h Ar level
Honor the user
.Dq nodump
flag
@ -112,7 +127,11 @@ only for dumps at or above the given
The default honor level is 1,
so that incremental backups omit such files
but full backups retain them.
.It Cm f Ar file
.It Fl d Ar density
Set tape density to
.Ar density .
The default is 1600BPI.
.It Fl f Ar file
Write the backup to
.Ar file ;
.Ar file
@ -145,11 +164,7 @@ program is
.Pa /etc/rmt ;
this can be overridden by the environment variable
.Ev RMT .
.It Cm d Ar density
Set tape density to
.Ar density .
The default is 1600BPI.
.It Cm n
.It Fl n
Whenever
.Nm dump
requires operator attention,
@ -157,7 +172,7 @@ notify all operators in the group
.Dq operator
by means similar to a
.Xr wall 1 .
.It Cm s Ar feet
.It Fl s Ar feet
Attempt to calculate the amount of tape needed
at a particular density.
If this amount is exceeded,
@ -165,7 +180,21 @@ If this amount is exceeded,
prompts for a new tape.
It is recommended to be a bit conservative on this option.
The default tape length is 2300 feet.
.It Cm u
.ne 1i
.It Fl T Ar date
Use the specified date as the starting time for the dump
instead of the time determined from looking in
.Pa /etc/dumpdates .
The format of date is the same as that of
.Xr ctime 3 .
This option is useful for automated dump scripts that wish to
dump over a specific period of time.
The
.Fl T
option is mutually exclusive from the
.Fl u
option.
.It Fl u
Update the file
.Pa /etc/dumpdates
after a successful dump.
@ -183,20 +212,7 @@ The file
.Pa /etc/dumpdates
may be edited to change any of the fields,
if necessary.
.It Cm T Ar date
Use the specified date as the starting time for the dump
instead of the time determined from looking in
.Pa /etc/dumpdates .
The format of date is the same as that of
.Xr ctime 3 .
This option is useful for automated dump scripts that wish to
dump over a specific period of time.
The
.Cm T
option is mutually exclusive from the
.Cm u
option.
.It Cm W
.It Fl W
.Nm Dump
tells the operator what file systems need to be dumped.
This information is gleaned from the files
@ -204,7 +220,7 @@ This information is gleaned from the files
and
.Pa /etc/fstab .
The
.Cm W
.Fl W
option causes
.Nm dump
to print out, for each file system in
@ -212,11 +228,11 @@ to print out, for each file system in
the most recent dump date and level,
and highlights those file systems that should be dumped.
If the
.Cm W
.Fl W
option is set, all other options are ignored, and
.Nm dump
exits immediately.
.It Cm w
.It Fl w
Is like W, but prints only those filesystems which need to be dumped.
.El
.Pp
@ -228,7 +244,7 @@ tape write error,
tape open error or
disk read error (if there are more than a threshold of 32).
In addition to alerting all operators implied by the
.Cm n
.Fl n
key,
.Nm dump
interacts with the operator on
@ -279,7 +295,7 @@ to minimize the number of tapes follows:
.It
Always start with a level 0 backup, for example:
.Bd -literal -offset indent
/sbin/dump 0uf /dev/nrst0 /usr/src
/sbin/dump -0u -f /dev/nrst0 /usr/src
.Ed
.Pp
This should be done at set intervals, say once a month or once every two months,
@ -334,8 +350,8 @@ Dump exits with zero status on success.
Startup errors are indicated with an exit code of 1;
abnormal termination is indicated with an exit code of 3.
.Sh BUGS
.Pp
Fewer than 32 read errors on the filesystem are ignored.
.Pp
Each reel requires a new process, so parent processes for
reels already written just hang around until the entire tape
is written.
@ -349,9 +365,9 @@ will prevent this from happening.
.Pp
.Nm Dump
with the
.Cm W
.Fl W
or
.Cm w
.Fl w
options does not report filesystems that have never been recorded
in
.Pa /etc/dumpdates ,

View File

@ -30,7 +30,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)dump.h 8.1 (Berkeley) 6/5/93
* @(#)dump.h 8.2 (Berkeley) 4/28/95
*/
#define MAXINOPB (MAXBSIZE / sizeof(struct dinode))
@ -186,8 +186,9 @@ void sig __P((int signo));
*/
#ifdef COMPAT
#include <sys/file.h>
extern char *index(), *rindex(), *strdup();
extern char *ctime();
#define strchr(a,b) index(a,b)
#define strrchr(a,b) rindex(a,b)
extern char *strdup(), *ctime();
extern int read(), write();
extern int errno;
#endif

View File

@ -32,7 +32,7 @@
*/
#ifndef lint
static char sccsid[] = "@(#)dumprmt.c 8.1 (Berkeley) 6/5/93";
static char sccsid[] = "@(#)dumprmt.c 8.3 (Berkeley) 4/28/95";
#endif /* not lint */
#include <sys/param.h>
@ -55,6 +55,7 @@ static char sccsid[] = "@(#)dumprmt.c 8.1 (Berkeley) 6/5/93";
#include <protocols/dumprestore.h>
#include <ctype.h>
#include <err.h>
#include <netdb.h>
#include <pwd.h>
#include <signal.h>
@ -157,7 +158,7 @@ rmtgetconn()
exit(X_ABORT);
}
}
if ((cp = index(rmtpeer, '@')) != NULL) {
if ((cp = strchr(rmtpeer, '@')) != NULL) {
tuser = rmtpeer;
*cp = '\0';
if (!okname(tuser))

View File

@ -38,7 +38,7 @@ static char copyright[] =
#endif /* not lint */
#ifndef lint
static char sccsid[] = "@(#)main.c 8.4 (Berkeley) 4/15/94";
static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/1/95";
#endif /* not lint */
#include <sys/param.h>
@ -49,23 +49,22 @@ static char sccsid[] = "@(#)main.c 8.4 (Berkeley) 4/15/94";
#include <ufs/inode.h>
#include <ufs/fs.h>
#else
#include <ufs/ffs/fs.h>
#include <ufs/ufs/dinode.h>
#include <ufs/ffs/fs.h>
#endif
#include <protocols/dumprestore.h>
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <fstab.h>
#include <signal.h>
#include <stdio.h>
#ifdef __STDC__
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#endif
#include "dump.h"
#include "pathnames.h"
@ -84,20 +83,21 @@ long dev_bsize = 1; /* recalculated below */
long blocksperfile; /* output blocks per file */
char *host = NULL; /* remote host (if any) */
static long numarg __P((int, char *, long, long, int *, char ***));
static void missingarg __P((int, char *)) __dead2;
static long numarg __P((char *, long, long));
static void obsolete __P((int *, char **[]));
static void usage __P((void));
int
main(argc, argv)
int argc;
char **argv;
char *argv[];
{
register ino_t ino;
register int dirty;
register struct dinode *dp;
register struct fstab *dt;
register char *map;
register char *cp;
register int ch;
int i, anydirskipped, bflag = 0, Tflag = 0, honorlevel = 1;
ino_t maxino;
@ -112,62 +112,31 @@ main(argc, argv)
if (TP_BSIZE / DEV_BSIZE == 0 || TP_BSIZE % DEV_BSIZE != 0)
quit("TP_BSIZE must be a multiple of DEV_BSIZE\n");
level = '0';
if (argc == 1) {
(void) fprintf(stderr, "Must specify a key.\n");
Exit(X_ABORT);
}
argv++;
argc -= 2;
for (cp = *argv++; cp != NULL && *cp != '\0'; cp++) {
switch (*cp) {
case '-':
if (argc < 2)
usage();
obsolete(&argc, &argv);
while ((ch = getopt(argc, argv, "0123456789B:b:cd:f:h:ns:T:uWw")) != -1)
switch (ch) {
/* dump level */
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
level = ch;
break;
case 'w':
lastdump('w'); /* tell us only what has to be done */
exit(0);
case 'W': /* what to do */
lastdump('W'); /* tell us state of what is done */
exit(0); /* do nothing else */
case 'f': /* output file */
if (argc < 1)
missingarg('f', "output file");
tape = *argv++;
argc--;
case 'a': /* `auto-size', Write to EOM. */
unlimited = 1;
break;
case 'd': /* density, in bits per inch */
density = numarg('d', "density",
10L, 327670L, &argc, &argv) / 10;
if (density >= 625 && !bflag)
ntrec = HIGHDENSITYTREC;
break;
case 's': /* tape size, feet */
tsize = numarg('s', "size",
1L, 0L, &argc, &argv) * 12 * 10;
break;
case 'T': /* time of last dump */
if (argc < 1)
missingarg('T', "time of last dump");
spcl.c_ddate = unctime(*argv);
if (spcl.c_ddate < 0) {
(void)fprintf(stderr, "bad time \"%s\"\n",
*argv);
exit(X_ABORT);
}
Tflag = 1;
lastlevel = '?';
argc--;
argv++;
case 'B': /* blocks per output file */
blocksperfile = numarg("number of blocks per file",
1L, 0L);
break;
case 'b': /* blocks per tape write */
ntrec = numarg('b', "number of blocks per write",
1L, 1000L, &argc, &argv);
ntrec = numarg("number of blocks per write",
1L, 1000L);
/*
* XXX
* physio(9) currently slices all requests to
@ -184,43 +153,60 @@ main(argc, argv)
}
break;
case 'B': /* blocks per output file */
blocksperfile = numarg('B', "number of blocks per file",
1L, 0L, &argc, &argv);
break;
case 'c': /* Tape is cart. not 9-track */
cartridge = 1;
break;
case 'a': /* `auto-size', Write to EOM. */
unlimited = 1;
case 'd': /* density, in bits per inch */
density = numarg("density", 10L, 327670L) / 10;
if (density >= 625 && !bflag)
ntrec = HIGHDENSITYTREC;
break;
/* dump level */
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
level = *cp;
case 'f': /* output file */
tape = optarg;
break;
case 'u': /* update /etc/dumpdates */
uflag = 1;
case 'h':
honorlevel = numarg("honor level", 0L, 10L);
break;
case 'n': /* notify operators */
notify = 1;
break;
case 'h':
honorlevel = numarg('h', "honor level",
0L, 10L, &argc, &argv);
case 's': /* tape size, feet */
tsize = numarg("tape size", 1L, 0L) * 12 * 10;
break;
case 'T': /* time of last dump */
spcl.c_ddate = unctime(optarg);
if (spcl.c_ddate < 0) {
(void)fprintf(stderr, "bad time \"%s\"\n",
optarg);
exit(X_ABORT);
}
Tflag = 1;
lastlevel = '?';
argc--;
argv++;
break;
case 'u': /* update /etc/dumpdates */
uflag = 1;
break;
case 'W': /* what to do */
case 'w':
lastdump(ch);
exit(0); /* do nothing else */
default:
(void)fprintf(stderr, "bad key '%c'\n", *cp);
exit(X_ABORT);
usage();
}
}
argc -= optind;
argv += optind;
if (argc < 1) {
(void)fprintf(stderr, "Must specify disk or filesystem\n");
exit(X_ABORT);
@ -263,9 +249,9 @@ main(argc, argv)
tsize = cartridge ? 1700L*120L : 2300L*120L;
}
if (index(tape, ':')) {
if (strchr(tape, ':')) {
host = tape;
tape = index(host, ':');
tape = strchr(host, ':');
*tape++ = '\0';
#ifdef RDUMP
if (index(tape, '\n')) {
@ -492,48 +478,33 @@ main(argc, argv)
/* NOTREACHED */
}
static void
usage()
{
(void)fprintf(stderr, "usage: dump [-0123456789cnu] [-B records] [-b blocksize] [-d density] [-f file]\n [-h level] [-s feet] [-T date] filesystem\n");
(void)fprintf(stderr, " dump [-W | -w]\n");
exit(1);
}
/*
* Pick up a numeric argument. It must be nonnegative and in the given
* range (except that a vmax of 0 means unlimited).
*/
static long
numarg(letter, meaning, vmin, vmax, pargc, pargv)
int letter;
numarg(meaning, vmin, vmax)
char *meaning;
long vmin, vmax;
int *pargc;
char ***pargv;
{
register char *p;
char *p;
long val;
char *str;
if (--*pargc < 0)
missingarg(letter, meaning);
str = *(*pargv)++;
for (p = str; *p; p++)
if (!isdigit(*p))
goto bad;
val = atol(str);
val = strtol(optarg, &p, 10);
if (*p)
errx(1, "illegal %s -- %s", meaning, optarg);
if (val < vmin || (vmax && val > vmax))
goto bad;
errx(1, "%s must be between %ld and %ld", meaning, vmin, vmax);
return (val);
bad:
(void)fprintf(stderr, "bad '%c' (%s) value \"%s\"\n",
letter, meaning, str);
exit(X_ABORT);
}
static void
missingarg(letter, meaning)
int letter;
char *meaning;
{
(void)fprintf(stderr, "The '%c' flag (%s) requires an argument\n",
letter, meaning);
exit(X_ABORT);
}
void
@ -568,7 +539,7 @@ rawname(cp)
char *cp;
{
static char rawbuf[MAXPATHLEN];
char *dp = rindex(cp, '/');
char *dp = strrchr(cp, '/');
if (dp == NULL)
return (NULL);
@ -581,17 +552,77 @@ rawname(cp)
return (rawbuf);
}
#ifdef sunos
const char *
strerror(errnum)
int errnum;
/*
* obsolete --
* Change set of key letters and ordered arguments into something
* getopt(3) will like.
*/
static void
obsolete(argcp, argvp)
int *argcp;
char **argvp[];
{
extern int sys_nerr;
extern const char *const sys_errlist[];
int argc, flags;
char *ap, **argv, *flagsp, **nargv, *p;
if (errnum < sys_nerr)
return (sys_errlist[errnum]);
else
return ("bogus errno in strerror");
/* Setup. */
argv = *argvp;
argc = *argcp;
/* Return if no arguments or first argument has leading dash. */
ap = argv[1];
if (argc == 1 || *ap == '-')
return;
/* Allocate space for new arguments. */
if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL ||
(p = flagsp = malloc(strlen(ap) + 2)) == NULL)
err(1, NULL);
*nargv++ = *argv;
argv += 2;
for (flags = 0; *ap; ++ap) {
switch (*ap) {
case 'a':
case 'B':
case 'b':
case 'd':
case 'f':
case 'h':
case 's':
case 'T':
if (*argv == NULL) {
warnx("option requires an argument -- %c", *ap);
usage();
}
if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL)
err(1, NULL);
nargv[0][0] = '-';
nargv[0][1] = *ap;
(void)strcpy(&nargv[0][2], *argv);
++argv;
++nargv;
break;
default:
if (!flags) {
*p++ = '-';
flags = 1;
}
*p++ = *ap;
break;
}
}
/* Terminate flags. */
if (flags) {
*p = '\0';
*nargv++ = flagsp;
}
/* Copy remaining arguments. */
while (*nargv++ = *argv++);
/* Update argument count. */
*argcp = nargv - *argvp - 1;
}
#endif

View File

@ -32,7 +32,7 @@
*/
#ifndef lint
static char sccsid[] = "@(#)tape.c 8.2 (Berkeley) 3/17/94";
static char sccsid[] = "@(#)tape.c 8.4 (Berkeley) 5/1/95";
#endif /* not lint */
#include <sys/param.h>
@ -45,8 +45,8 @@ static char sccsid[] = "@(#)tape.c 8.2 (Berkeley) 3/17/94";
#include <ufs/fs.h>
#include <ufs/inode.h>
#else
#include <ufs/ffs/fs.h>
#include <ufs/ufs/dinode.h>
#include <ufs/ffs/fs.h>
#endif
#include <protocols/dumprestore.h>
@ -584,10 +584,10 @@ startnewtape(top)
* the remaining names for subsequent volumes.
*/
tapeno++; /* current tape sequence */
if (nexttape || index(tape, ',')) {
if (nexttape || strchr(tape, ',')) {
if (nexttape && *nexttape)
tape = nexttape;
if ((p = index(tape, ',')) != NULL) {
if ((p = strchr(tape, ',')) != NULL) {
*p = '\0';
nexttape = p + 1;
} else

View File

@ -32,7 +32,7 @@
*/
#ifndef lint
static char sccsid[] = "@(#)traverse.c 8.2 (Berkeley) 9/23/93";
static char sccsid[] = "@(#)traverse.c 8.7 (Berkeley) 6/15/95";
#endif /* not lint */
#include <sys/param.h>
@ -45,9 +45,9 @@ static char sccsid[] = "@(#)traverse.c 8.2 (Berkeley) 9/23/93";
#include <ufs/fsdir.h>
#include <ufs/inode.h>
#else
#include <ufs/ffs/fs.h>
#include <ufs/ufs/dir.h>
#include <ufs/ufs/dinode.h>
#include <ufs/ffs/fs.h>
#endif
#include <protocols/dumprestore.h>
@ -362,8 +362,7 @@ dumpino(dp, ino)
spcl.c_addr[0] = 1;
spcl.c_count = 1;
writeheader(ino);
bcopy((caddr_t)dp->di_shortlink, buf,
(u_long)dp->di_size);
memmove(buf, dp->di_shortlink, (u_long)dp->di_size);
buf[dp->di_size] = '\0';
writerec(buf, 0);
return;
@ -418,7 +417,7 @@ dmpindir(ino, blk, ind_level, size)
if (blk != 0)
bread(fsbtodb(sblock, blk), (char *)idblk, (int) sblock->fs_bsize);
else
bzero((char *)idblk, (int)sblock->fs_bsize);
memset(idblk, 0, (int)sblock->fs_bsize);
if (ind_level <= 0) {
if (*size < NINDIR(sblock) * sblock->fs_bsize)
cnt = howmany(*size, sblock->fs_fsize);
@ -592,7 +591,7 @@ bread(blkno, buf, size)
/*
* Zero buffer, then try to read each sector of buffer separately.
*/
bzero(buf, size);
memset(buf, 0, size);
for (i = 0; i < size; i += dev_bsize, buf += dev_bsize, blkno++) {
if (lseek(diskfd, ((off_t)blkno << dev_bshift), 0) !=
((off_t)blkno << dev_bshift))