Date: Fri, 1 Mar 2002 22:02:50 +1100 (EST) From: Mark Hannon <markhannon@optushome.com.au> To: FreeBSD-gnats-submit@freebsd.org Subject: bin/35450: PATCH: Add -S flag to dump to estimate size only Message-ID: <200203011102.g21B2of80344@doorway.homeip.net>
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>Number: 35450
>Category: bin
>Synopsis: PATCH: Add -S flag to dump to estimate size only
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: change-request
>Submitter-Id: current-users
>Arrival-Date: Fri Mar 01 03:10:01 PST 2002
>Closed-Date:
>Last-Modified:
>Originator: Mark Hannon
>Release: FreeBSD 4.5-RELEASE i386
>Organization:
-
>Environment:
System: FreeBSD tbird.home.lan 4.5-RELEASE FreeBSD 4.5-RELEASE #0: Mon Jan 28 14:31:56 GMT 2002 murray@builder.freebsdmall.com:/usr/src/sys/compile/GENERIC i386
>Description:
Add -S flag to dump to allow it just print out dump estimate size and then
exit. Taken from NetBSD
>How-To-Repeat:
>Fix:
Index: sbin/dump/main.c
===================================================================
RCS file: /home/ncvs/src/sbin/dump/main.c,v
retrieving revision 1.20.2.6
diff -c -r1.20.2.6 main.c
*** sbin/dump/main.c 2001/11/24 19:19:41 1.20.2.6
--- sbin/dump/main.c 2002/02/23 02:53:24
***************
*** 105,110 ****
--- 105,111 ----
register char *map;
register int ch;
int i, anydirskipped, bflag = 0, Tflag = 0, honorlevel = 1;
+ int just_estimate = 0;
ino_t maxino;
spcl.c_date = 0;
***************
*** 124,132 ****
obsolete(&argc, &argv);
#ifdef KERBEROS
! #define optstring "0123456789aB:b:cd:f:h:kns:T:uWwD:"
#else
! #define optstring "0123456789aB:b:cd:f:h:ns:T:uWwD:"
#endif
while ((ch = getopt(argc, argv, optstring)) != -1)
#undef optstring
--- 125,133 ----
obsolete(&argc, &argv);
#ifdef KERBEROS
! #define optstring "0123456789aB:b:cd:f:h:kns:ST:uWwD:"
#else
! #define optstring "0123456789aB:b:cd:f:h:ns:ST:uWwD:"
#endif
while ((ch = getopt(argc, argv, optstring)) != -1)
#undef optstring
***************
*** 187,192 ****
--- 188,197 ----
tsize = numarg("tape size", 1L, 0L) * 12 * 10;
break;
+ case 'S': /* exit after estimating # of tapes */
+ just_estimate = 1;
+ break;
+
case 'T': /* time of last dump */
spcl.c_ddate = unctime(optarg);
if (spcl.c_ddate < 0) {
***************
*** 411,416 ****
--- 416,428 ----
tapesize, fetapes);
}
+ /*
+ * If the user only wants an estimate of the number of
+ * tapes, exit now.
+ */
+ if (just_estimate)
+ exit(0);
+
/*
* Allocate tape buffer.
*/
***************
*** 495,501 ****
#ifdef KERBEROS
"k"
#endif
! "nu] [-B records] [-b blocksize] [-D dumpdates]\n"
" [-d density] [-f file ] [-h level] [-s feet] "
"[-T date] filesystem\n"
" dump [-W | -w]\n");
--- 507,513 ----
#ifdef KERBEROS
"k"
#endif
! "nSu] [-B records] [-b blocksize] [-D dumpdates]\n"
" [-d density] [-f file ] [-h level] [-s feet] "
"[-T date] filesystem\n"
" dump [-W | -w]\n");
Index: sbin/dump/dump.8
===================================================================
RCS file: /home/ncvs/src/sbin/dump/dump.8,v
retrieving revision 1.27.2.9
diff -c -r1.27.2.9 dump.8
*** sbin/dump/dump.8 2001/08/16 11:35:42 1.27.2.9
--- sbin/dump/dump.8 2002/02/23 02:53:38
***************
*** 42,48 ****
.Nd filesystem backup
.Sh SYNOPSIS
.Nm
! .Op Fl 0123456789acknu
.Op Fl B Ar records
.Op Fl b Ar blocksize
.Op Fl D Ar dumpdates
--- 42,48 ----
.Nd filesystem backup
.Sh SYNOPSIS
.Nm
! .Op Fl 0123456789acknSu
.Op Fl B Ar records
.Op Fl b Ar blocksize
.Op Fl D Ar dumpdates
***************
*** 194,199 ****
--- 194,202 ----
prompts for a new tape.
It is recommended to be a bit conservative on this option.
The default tape length is 2300 feet.
+ .It Fl S
+ Display an estimate of the backup size and the number of
+ tapes required, and exit without actually performing the dump.
.It Fl T Ar date
Use the specified date as the starting time for the dump
instead of the time determined from looking in
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