oweals/busybox.git
24 years agoNote the syslogd bug fix
Eric Andersen [Thu, 14 Sep 2000 21:56:18 +0000 (21:56 -0000)]
Note the syslogd bug fix

24 years agoBug fix for wget, and proper attribution of Chip Rosenthal and
Eric Andersen [Thu, 14 Sep 2000 21:46:30 +0000 (21:46 -0000)]
Bug fix for wget, and proper attribution of Chip Rosenthal and
Covad Communications for the contribution of wget.
 -Erik

24 years agoFix the halt/reboot/poweroff segfault when used from within an initrd...
Eric Andersen [Thu, 14 Sep 2000 21:12:20 +0000 (21:12 -0000)]
Fix the halt/reboot/poweroff segfault when used from within an initrd...
 -Erik

24 years agoBackslashes shouldn't be treated as backticks.
Matt Kraai [Thu, 14 Sep 2000 00:43:20 +0000 (00:43 -0000)]
Backslashes shouldn't be treated as backticks.

24 years agoCopy the string terminator.
Matt Kraai [Thu, 14 Sep 2000 00:26:50 +0000 (00:26 -0000)]
Copy the string terminator.

24 years agoFix looping bug, use fullRead
Glenn L McGrath [Wed, 13 Sep 2000 23:08:07 +0000 (23:08 -0000)]
Fix looping bug, use fullRead

24 years agoAdd in BasicLinux by request
Eric Andersen [Wed, 13 Sep 2000 23:06:41 +0000 (23:06 -0000)]
Add in BasicLinux by request

24 years agoAdded _install
Pavel Roskin [Wed, 13 Sep 2000 16:52:32 +0000 (16:52 -0000)]
Added _install

24 years agoEnsure forked processes always are on a controlling tty, so the
Eric Andersen [Wed, 13 Sep 2000 16:15:29 +0000 (16:15 -0000)]
Ensure forked processes always are on a controlling tty, so the
^C can be properly sent to /dev/console.
 -Erik

24 years agoMake syslogd ignore SIGCLD only if SIGCLD is defined. This should fix SPARC.
Pavel Roskin [Wed, 13 Sep 2000 14:14:29 +0000 (14:14 -0000)]
Make syslogd ignore SIGCLD only if SIGCLD is defined. This should fix SPARC.
Also ignore SIGCHLD - it must have been meant.

24 years agoList of signals updated from util-linux-2.10o
Pavel Roskin [Wed, 13 Sep 2000 14:03:48 +0000 (14:03 -0000)]
List of signals updated from util-linux-2.10o
Architecture names are no longer used - should now compile on SPARC

24 years agoDon't fork for the . (source) command so that environment settings are
Matt Kraai [Wed, 13 Sep 2000 03:43:36 +0000 (03:43 -0000)]
Don't fork for the . (source) command so that environment settings are
preserved.

24 years agoFix calls to {m,c,re}alloc so that they use x{m,c,re}alloc instead of
Matt Kraai [Wed, 13 Sep 2000 02:46:14 +0000 (02:46 -0000)]
Fix calls to {m,c,re}alloc so that they use x{m,c,re}alloc instead of
segfaulting or handling errors the same way themselves.

24 years agoFix unchecked calls to {m,c,re}alloc so that they print an error and
Matt Kraai [Wed, 13 Sep 2000 02:08:21 +0000 (02:08 -0000)]
Fix unchecked calls to {m,c,re}alloc so that they print an error and
exit rather than segfaulting (what an improvement).

24 years agoTypo fix: resolv -> resolve
Pavel Roskin [Tue, 12 Sep 2000 22:05:17 +0000 (22:05 -0000)]
Typo fix: resolv -> resolve

24 years agoFormatting cleanup patch from Bryan Rittmeyer <bryan@ixiacom.com>.
Eric Andersen [Tue, 12 Sep 2000 16:20:49 +0000 (16:20 -0000)]
Formatting cleanup patch from Bryan Rittmeyer <bryan@ixiacom.com>.
 -Erik

24 years agoFix .deb unpack and experimental TAR support
Glenn L McGrath [Mon, 11 Sep 2000 05:25:39 +0000 (05:25 -0000)]
Fix .deb unpack and experimental TAR support

The previous ar.c fialed to recognise one record in .debs

Experimental tar support, this is currently *very* cheap because ar and
tar are functionally similar. It  will need lots of testing so by
default tar support code is defined out.
To test uncomment the line "#define BB_AR_EXPERIMENTAL_UNTAR"

24 years agoExtra defines for ar
Glenn L McGrath [Mon, 11 Sep 2000 05:06:13 +0000 (05:06 -0000)]
Extra defines for ar

24 years agoSimplify a few little things, and merge in a patch from
Eric Andersen [Mon, 11 Sep 2000 04:55:31 +0000 (04:55 -0000)]
Simplify a few little things, and merge in a patch from
robotti@metconnect.com so that 'ar -xv' and 'ar -x -v'
both work.
 -Erik

24 years agoNew dd behaviour
Glenn L McGrath [Mon, 11 Sep 2000 00:33:09 +0000 (00:33 -0000)]
New dd behaviour

24 years agodd now truncates files at the end its write, this can be turned of by
Glenn L McGrath [Mon, 11 Sep 2000 00:32:13 +0000 (00:32 -0000)]
dd now truncates files at the end its write, this can be turned of by
specifying conv=notrunc in the command line

This conforms to GNU dd behaviour

24 years agoMAke lsmod act just like modutils lsmod, by printing which modules use
Eric Andersen [Sun, 10 Sep 2000 16:16:00 +0000 (16:16 -0000)]
MAke lsmod act just like modutils lsmod, by printing which modules use
other modules, and state info like (deleted) and such.
 -Erik

24 years agoMake init handle current 2.4.x sysinfo behavior
Eric Andersen [Sun, 10 Sep 2000 16:13:41 +0000 (16:13 -0000)]
Make init handle current 2.4.x sysinfo behavior
 -Erik

24 years agoUpdate free for current 2.4.x behavior...
Eric Andersen [Sun, 10 Sep 2000 16:10:41 +0000 (16:10 -0000)]
Update free for current 2.4.x behavior...
 -Erik

24 years agoRemove some debugging code
Glenn L McGrath [Sun, 10 Sep 2000 04:42:20 +0000 (04:42 -0000)]
Remove some debugging code

24 years agoUsing seek=? used to cause part of the original file to be zero'ed, i
Glenn L McGrath [Sun, 10 Sep 2000 04:39:37 +0000 (04:39 -0000)]
Using seek=? used to cause part of the original file to be zero'ed, i
think this was caused by opening the file in truncate mode.

24 years agoMy previous attempt to make dd use fullRead, fullWrite was very broken,
Glenn L McGrath [Sun, 10 Sep 2000 01:54:27 +0000 (01:54 -0000)]
My previous attempt to make dd use fullRead, fullWrite was very broken,
this should actually work.

24 years agoremove some printf statements i forgot about
Glenn L McGrath [Sat, 9 Sep 2000 15:04:34 +0000 (15:04 -0000)]
remove some printf statements i forgot about

24 years agoUpdated to match new -R ar functionality
Glenn L McGrath [Sat, 9 Sep 2000 14:57:15 +0000 (14:57 -0000)]
Updated to match new -R ar functionality

24 years agoImplemented new ar functionality unique to busybox ar (i think), the -R
Glenn L McGrath [Sat, 9 Sep 2000 14:50:04 +0000 (14:50 -0000)]
Implemented new ar functionality unique to busybox ar (i think), the -R
option enable a Recursive extraction (or listing) to take place.

i.e. if any files being extracted are themselves ar archives then
busybox ar will extract their contents as well.

e.g. take bar.deb and do (with GNU ar) ar -q foo.deb b.ar
then with busybox ar can do ar -x b.ar data.tar.gz

-R isnt used for anything in GNU ar so i think it should be ok, could
have used long options

This functionality will become (more) usufull with tar, gz support.

24 years agoChanged getopt so that options can be grouped together, the source
Glenn L McGrath [Sat, 9 Sep 2000 13:38:26 +0000 (13:38 -0000)]
Changed getopt so that options can be grouped together, the source
archive is now assumed to be the first non parameter.

This is how GNU ar behaves.

24 years agoFix permisions
Glenn L McGrath [Sat, 9 Sep 2000 12:48:40 +0000 (12:48 -0000)]
Fix permisions

24 years agoNow supports GNU style long filenames.
Glenn L McGrath [Sat, 9 Sep 2000 08:35:45 +0000 (08:35 -0000)]
Now supports GNU style long filenames.

If no filenames are specifed to be (extracted/listed) it will act on
all files in the archive (i dont think the old version did this)

Code is structured to better support upcoming recursive extraction
functionality.

The old code was a bit strange in places, dont know what i was thinking.

24 years agoNew ls sorting patch, as written by Sterling Huxley, and then updated
Eric Andersen [Thu, 7 Sep 2000 17:24:47 +0000 (17:24 -0000)]
New ls sorting patch, as written by Sterling Huxley, and then updated
by kent robotti.  I then updated it to use my_getpwuid and my_getgrgid
(per busybox policy).
 -Erik

24 years agoStop leaking file handles.
Matt Kraai [Thu, 7 Sep 2000 04:34:17 +0000 (04:34 -0000)]
Stop leaking file handles.

24 years agoFix more typos.
Matt Kraai [Wed, 6 Sep 2000 03:59:49 +0000 (03:59 -0000)]
Fix more typos.

24 years agoReset optind so that getopt works in busybox applets called directly by sh.
Matt Kraai [Wed, 6 Sep 2000 01:46:18 +0000 (01:46 -0000)]
Reset optind so that getopt works in busybox applets called directly by sh.
Change the behavior of -c to correctly handle $1..$9.

24 years agoFixed a grammatical error.
Matt Kraai [Wed, 6 Sep 2000 00:50:51 +0000 (00:50 -0000)]
Fixed a grammatical error.

24 years agoFixed for when BB_CP_MV is enabled.
Eric Andersen [Tue, 5 Sep 2000 22:17:22 +0000 (22:17 -0000)]
Fixed for when BB_CP_MV is enabled.

24 years agoAdd BB_SH to get_last_path_component()... Fix thanks to
Eric Andersen [Tue, 5 Sep 2000 21:50:52 +0000 (21:50 -0000)]
Add BB_SH to get_last_path_component()...  Fix thanks to
Bj�rn Eriksson.

24 years agoApply segfault on no-args fix from robotti@metconnect.com
Eric Andersen [Tue, 5 Sep 2000 18:21:53 +0000 (18:21 -0000)]
Apply segfault on no-args fix from robotti@metconnect.com

24 years agoSet environment variable to make ash happy. ash is a frequent enough
Eric Andersen [Tue, 5 Sep 2000 17:57:52 +0000 (17:57 -0000)]
Set environment variable to make ash happy.  ash is a frequent enough
target....

24 years agoAdded expr, from Edward Betts <edward@debian.org>, with some fixups
Eric Andersen [Tue, 5 Sep 2000 17:37:48 +0000 (17:37 -0000)]
Added expr, from Edward Betts <edward@debian.org>, with some fixups
and docs added by me.
 -Erik

24 years agoAllow compilation when not using BB_FEATURE_TAR_EXCLUDE, and fix
Matt Kraai [Mon, 4 Sep 2000 16:51:55 +0000 (16:51 -0000)]
Allow compilation when not using BB_FEATURE_TAR_EXCLUDE, and fix
handling of --exclude option.

24 years agoForgot this part of wget
Eric Andersen [Mon, 4 Sep 2000 15:16:51 +0000 (15:16 -0000)]
Forgot this part of wget

24 years agoInitial implementation of wget, from Chip Rosenthal <chip@laserlink.net>.
Eric Andersen [Mon, 4 Sep 2000 15:15:55 +0000 (15:15 -0000)]
Initial implementation of wget, from Chip Rosenthal <chip@laserlink.net>.
Very cool.  Still lacks "chunked" transfer-coding, so not totally RFC
compliant for HTTP1.1, but very nice nonethe less, and very small.
 -Erik

24 years agoAllow selective extraction and listing of files. And fix an unchecked
Matt Kraai [Mon, 4 Sep 2000 08:25:42 +0000 (08:25 -0000)]
Allow selective extraction and listing of files.  And fix an unchecked
return value of realloc (with xrealloc).

24 years agoAdd in byld
Eric Andersen [Fri, 1 Sep 2000 22:24:03 +0000 (22:24 -0000)]
Add in byld

24 years agoFix compile when BB_FEATURE_LINUXRC is defined
Eric Andersen [Fri, 1 Sep 2000 18:43:02 +0000 (18:43 -0000)]
Fix compile when BB_FEATURE_LINUXRC is defined
 -Erik

24 years agoFixed a stupid thinko preventing zcat from doing its job, thanks
Eric Andersen [Fri, 1 Sep 2000 16:25:33 +0000 (16:25 -0000)]
Fixed a stupid thinko preventing zcat from doing its job, thanks
to Torbj�rn Axelsson <torax@cendio.se> for the fix.
 -Erik

24 years agoTurned off ls file-sorting till it can be fixed.
Eric Andersen [Fri, 1 Sep 2000 16:15:51 +0000 (16:15 -0000)]
Turned off ls file-sorting till it can be fixed.

24 years agoupdated some usage info from a patch from robotti@metconnect.com
Eric Andersen [Fri, 1 Sep 2000 16:12:57 +0000 (16:12 -0000)]
updated some usage info from a patch from robotti@metconnect.com
 -Erik

24 years agoArgh. I *will* compile before checking in.
Matt Kraai [Fri, 1 Sep 2000 02:53:01 +0000 (02:53 -0000)]
Argh.  I *will* compile before checking in.

24 years agoDon't unlink files if we are extracting to stdout.
Matt Kraai [Fri, 1 Sep 2000 02:50:48 +0000 (02:50 -0000)]
Don't unlink files if we are extracting to stdout.

24 years agoCorrect the stdin/stdout behavior when no args are provided.
Eric Andersen [Fri, 1 Sep 2000 00:41:10 +0000 (00:41 -0000)]
Correct the stdin/stdout behavior when no args are provided.
 -Erik

24 years agoSigh. Seems I screwed up last time. This fixed detecting
Eric Andersen [Fri, 1 Sep 2000 00:33:06 +0000 (00:33 -0000)]
Sigh.  Seems I screwed up last time.  This fixed detecting
when on a console or not, and make default behavior compatible
with GNU gzip...
 -Erik

24 years agoAdd an extra sanity check in parse_mode
Eric Andersen [Fri, 1 Sep 2000 00:06:17 +0000 (00:06 -0000)]
Add an extra sanity check in parse_mode
 -Erik

24 years agoFix a spelling error
Eric Andersen [Thu, 31 Aug 2000 23:53:58 +0000 (23:53 -0000)]
Fix a spelling error
 -Erik

24 years agoFix spelling error
Eric Andersen [Thu, 31 Aug 2000 23:52:46 +0000 (23:52 -0000)]
Fix spelling error
 -Erik

24 years agoRewritten by mistake.
Matt Kraai [Mon, 28 Aug 2000 03:53:27 +0000 (03:53 -0000)]
Rewritten by mistake.

24 years agoRemoved dead regular expression code.
Matt Kraai [Mon, 28 Aug 2000 03:12:30 +0000 (03:12 -0000)]
Removed dead regular expression code.

24 years agoCompile xstrdup and xstrndup iff they are needed.
Matt Kraai [Sat, 26 Aug 2000 16:52:28 +0000 (16:52 -0000)]
Compile xstrdup and xstrndup iff they are needed.

24 years agoar.c now uses a linked list to process headers, uses getopt, new internal function...
Glenn L McGrath [Fri, 25 Aug 2000 03:50:10 +0000 (03:50 -0000)]
ar.c now uses a linked list to process headers, uses getopt, new internal function extractAr(srcFD, dstFd, filename) to make it easily accessable to other busybox functions.

moved copySubFile from ar.c to utilities.c

modified dd.c to use fullWrite

modified copyFile in utilities.c to use copySubFile

24 years agoFix tab stops for sed usage.
Eric Andersen [Fri, 25 Aug 2000 00:23:36 +0000 (00:23 -0000)]
Fix tab stops for sed usage.

24 years agoFixed a warning about a label not being used
Pavel Roskin [Tue, 22 Aug 2000 15:47:57 +0000 (15:47 -0000)]
Fixed a warning about a label not being used

24 years agoFixed misuse of type "char"
Pavel Roskin [Tue, 22 Aug 2000 15:38:16 +0000 (15:38 -0000)]
Fixed misuse of type "char"

24 years agoFrom Ken Chalmers <chalmers@norscan.com>:
Pavel Roskin [Tue, 22 Aug 2000 15:35:31 +0000 (15:35 -0000)]
From Ken Chalmers <chalmers@norscan.com>:
The current CVS mount.c is missing a semicolon, causing building to fail
if NFS is enabled (#define BB_NFSMOUNT).

24 years agoFix a unterminated string.
Eric Andersen [Tue, 22 Aug 2000 05:18:30 +0000 (05:18 -0000)]
Fix a unterminated string.
 -Erik

24 years agoNote the chmod fix.
Eric Andersen [Tue, 22 Aug 2000 01:02:05 +0000 (01:02 -0000)]
Note the chmod fix.
 -Erik

24 years agoFix an option parsing bug where things like
Eric Andersen [Tue, 22 Aug 2000 01:00:56 +0000 (01:00 -0000)]
Fix an option parsing bug where things like
    chmod -r /tmp/file
wholdn't work (since it thought -r was an option).  Doh!
 -Erik

24 years agoSome additional tips and formatting changes.
Mark Whitley [Tue, 22 Aug 2000 00:20:21 +0000 (00:20 -0000)]
Some additional tips and formatting changes.

24 years agoFix a silly bug so it compiles up properly
Eric Andersen [Mon, 21 Aug 2000 23:29:45 +0000 (23:29 -0000)]
Fix a silly bug so it compiles up properly
 -Erik

24 years agoOops. Forgot to commit rdate.c.
Eric Andersen [Mon, 21 Aug 2000 23:04:00 +0000 (23:04 -0000)]
Oops.  Forgot to commit rdate.c.
 -Erik

24 years agoScript to do regression test, by combining all possible options.
Eric Andersen [Mon, 21 Aug 2000 23:01:39 +0000 (23:01 -0000)]
Script to do regression test, by combining all possible options.
 -Erik

24 years agoScript to do regression test, by combining all possible options.
Eric Andersen [Mon, 21 Aug 2000 23:01:20 +0000 (23:01 -0000)]
Script to do regression test, by combining all possible options.
Run this to check for combinitorial type build errors.
 -Erik

24 years agoAdded the 'rdate' command, thanks to Sterling Huxley <sterling@europa.com>.
Eric Andersen [Mon, 21 Aug 2000 22:46:33 +0000 (22:46 -0000)]
Added the 'rdate' command, thanks to Sterling Huxley <sterling@europa.com>.
I added the docs, and made behavior identical to the GNU version.
 -Erik

24 years agoTurn off some debug noise.
Eric Andersen [Mon, 21 Aug 2000 22:34:23 +0000 (22:34 -0000)]
Turn off some debug noise.
 -Erik

24 years agoAdded getopt(1) from "Alfred M. Szmidt" <ams@trillian.itslinux.org>
Eric Andersen [Mon, 21 Aug 2000 22:02:34 +0000 (22:02 -0000)]
Added getopt(1) from "Alfred M. Szmidt" <ams@trillian.itslinux.org>
 -Erik

24 years agoRemoved since this patch is now in the current 2.4.x kernel
Eric Andersen [Mon, 21 Aug 2000 21:44:52 +0000 (21:44 -0000)]
Removed since this patch is now in the current 2.4.x kernel
tree.
 -Erik

24 years agoApplied patch from Mark Ferrell <mferrell@mvista.com> to use the 'p' option in
Mark Whitley [Mon, 21 Aug 2000 21:29:20 +0000 (21:29 -0000)]
Applied patch from Mark Ferrell <mferrell@mvista.com> to use the 'p' option in
substitution expressions.

24 years agoOops. Forgot to add in reset.c. Doh!
Eric Andersen [Mon, 21 Aug 2000 21:26:33 +0000 (21:26 -0000)]
Oops.  Forgot to add in reset.c.  Doh!
 -Erik

24 years agoFix a thinko, thanks to Klaasjan <klaasjan@europe.com>
Eric Andersen [Mon, 21 Aug 2000 21:23:48 +0000 (21:23 -0000)]
Fix a thinko, thanks to Klaasjan <klaasjan@europe.com>
 -Erik

24 years agoAdd in the "reset" command.
Eric Andersen [Mon, 21 Aug 2000 21:18:52 +0000 (21:18 -0000)]
Add in the "reset" command.
 -Erik

24 years agoYet another patch to fixup lsmod
Eric Andersen [Mon, 21 Aug 2000 19:40:42 +0000 (19:40 -0000)]
Yet another patch to fixup lsmod
 -Erik

24 years agoSome leftover stuff I forgot to commit for the lsmod change.
Eric Andersen [Mon, 21 Aug 2000 19:38:49 +0000 (19:38 -0000)]
Some leftover stuff I forgot to commit for the lsmod change.
 -Erik

24 years agolsmod now uses the query_module syscall, rather then /proc
Eric Andersen [Mon, 21 Aug 2000 19:25:16 +0000 (19:25 -0000)]
lsmod now uses the query_module syscall, rather then /proc
 -Erik

24 years agosyslogd was leaking processes that could forever busyloop. Fixed.
Eric Andersen [Sun, 20 Aug 2000 06:11:32 +0000 (06:11 -0000)]
syslogd was leaking processes that could forever busyloop.  Fixed.
 -Erik

24 years agoMinor fixups.
Eric Andersen [Sat, 19 Aug 2000 20:16:16 +0000 (20:16 -0000)]
Minor fixups.
 -Erik

24 years agoBetter 'mt' docs, thanks to Kent Robotti <robotti@metconnect.com>
Eric Andersen [Fri, 11 Aug 2000 20:14:11 +0000 (20:14 -0000)]
Better 'mt' docs, thanks to Kent Robotti <robotti@metconnect.com>
 -Erik

24 years agoFix to make 'ar xv' work, thanks to Kent Robotti <robotti@metconnect.com>
Eric Andersen [Fri, 11 Aug 2000 20:11:35 +0000 (20:11 -0000)]
Fix to make 'ar xv' work, thanks to Kent Robotti <robotti@metconnect.com>
 -Erik

24 years agoMinor link update
Eric Andersen [Fri, 11 Aug 2000 18:13:21 +0000 (18:13 -0000)]
Minor link update
 -Erik

24 years agoAdd optional ls file sorting, thanks to a patch from
Eric Andersen [Fri, 11 Aug 2000 18:10:21 +0000 (18:10 -0000)]
Add optional ls file sorting, thanks to a patch from
Sterling Huxley <sterling@europa.com>
 -Erik

24 years agoAdded fix from David Vrabel <dvrabel@arcom.co.uk> for a
Eric Andersen [Fri, 11 Aug 2000 17:45:02 +0000 (17:45 -0000)]
Added fix from David Vrabel <dvrabel@arcom.co.uk> for a
buffer overrun in find_real_root_device(), fixing bug #1019
 -Erik

24 years agoSome #include updates.
Eric Andersen [Thu, 10 Aug 2000 17:59:11 +0000 (17:59 -0000)]
Some #include updates.
 -Erik

24 years agoApplied patch from Mark Ferrell <mferrell@mvista.com> to fix sed '1,$p' where
Mark Whitley [Thu, 10 Aug 2000 00:09:47 +0000 (00:09 -0000)]
Applied patch from Mark Ferrell <mferrell@mvista.com> to fix sed '1,$p' where
sed was only printing the first line and then exiting.

24 years agoWe complained if the total number of arguments was greater than 3 and
Matt Kraai [Sun, 6 Aug 2000 15:36:50 +0000 (15:36 -0000)]
We complained if the total number of arguments was greater than 3 and
the destination wasn't a directory.  We should only complain if the
there are multiple sources and target isn't a directory.

24 years agoExit with the appropriate value when grepping multiple files.
Matt Kraai [Sun, 6 Aug 2000 15:25:53 +0000 (15:25 -0000)]
Exit with the appropriate value when grepping multiple files.

24 years agoCleaner way to handle -NUM and +NUM, reduces the mem usage as well.
Eric Andersen [Wed, 2 Aug 2000 19:57:18 +0000 (19:57 -0000)]
Cleaner way to handle -NUM and +NUM, reduces the mem usage as well.
 -Erik

24 years agoFixed the "-f" option.
Eric Andersen [Wed, 2 Aug 2000 18:56:25 +0000 (18:56 -0000)]
Fixed the "-f" option.
 -Erik

24 years agoMerge in two patches from Dave Cinege:
Eric Andersen [Wed, 2 Aug 2000 18:48:26 +0000 (18:48 -0000)]
Merge in two patches from Dave Cinege:
    the first is a cleanup of tar --exclude
    the second changes mount so mtab works more as it should, and
    also allows mount to use the traditional short form (i.e.
    'mount / -o remount,rw' now works.

While inside tar, I changed it to use getopt...
 -Erik