Commit Graph

77 Commits

Author SHA1 Message Date
Denis Vlasenko
af9854b81a umount: do not try to close FILE* which is NULL. 2006-09-14 16:40:46 +00:00
Rob Landley
4470b74e29 The kernel can't handle umount /dev/hdc, we have to do it through mtab,
except that we still have to work when there is no mtab.

Oh, and while we're at it, take advantage of the fact that modern processors
avoid branches via conditional assignment where possible.  ("x = a ? b : c;"
turns into "x = c; if (a) x = b;" because that way there's no branch to
potentially mispredict and thus never a bubble in the pipeline.  The if(a)
turns into an assembly test followed by a conditional assignment (rather
than a conditional jump).)  So since the compiler is going to do that _anyway_,
we might as well take advantage of it to produce a slightly smaller binary.

So there.
2006-08-17 19:07:20 +00:00
Rob Landley
7478804b78 Fix umount so loop device disassociation hopefully doesn't screw up errno on
a failed mount.  And while I'm at it, legacy mdev removal was only being done
in the _failure_ case?  That can't be right.  Plus minor header cleanups
and an option parsing tweak.
2006-08-03 17:54:45 +00:00
Rob Landley
d921b2ecc0 Remove bb_ prefixes from xfuncs.c (and a few other places), consolidate
things like xasprintf() into xfuncs.c, remove xprint_file_by_name() (it only
had one user), clean up lots of #includes...  General cleanup pass.  What I've
been doing for the last couple days.

And it conflicts!  I've removed httpd.c from this checkin due to somebody else
touching that file.  It builds for me.  I have to catch a bus.  (Now you know
why I'm looking forward to Mercurial.)
2006-08-03 15:41:12 +00:00
Rob Landley
22d26fc6ae Patch from Yann Morin to put BLKGETSIZE64 in platform.h had rather a lot of
fallout due to the #include <sys/mount.h>.  Removed that #include from various
applets and fixed up those that were unhappy when that #include was made
because they'd block copied stuff out of it.  (Sigh.)
2006-06-15 15:49:36 +00:00
Rob Landley
5a57821565 Bug fix: umount wasn't detaching loop devices unless mtab support was enabled.
Made some whitespace cleanups while I was there.
2006-03-17 03:30:05 +00:00
Rob Landley
dfba741457 Robert P. Day removed 8 gazillion occurrences of "extern" on function
definitions.  (That should only be on prototypes.)
2006-03-06 20:47:33 +00:00
Rob Landley
cc6d8d30ec Fix umount so it works if there's no /etc/mtab or /proc/mounts, make
umount -a into a CONFIG_FEATURE (why not?), and zap the now obsolete
defconfig file (which was supposed to be part of the previous checkin).
2006-02-08 20:06:57 +00:00
"Vladimir N. Oleynik"
54cb5c6af3 better check usage with options, correct show problem error message, indent 2005-10-10 12:17:33 +00:00
Rob Landley
16722554bf Tito switched option parsing over to switch umount over to bb_getopt_ulflags(). 2005-09-24 22:41:08 +00:00
Rob Landley
f4c684a1ef When compiling with FEATURE_MTAB_SUPPORT disabled, the call to erase_mtab()
can never be made because useMtab is initialized to 0, and all the other
assignments of that variable assign 0 to it.  Any compiler that can perform
simple constant propogation on local variables will optimize away if statements
testing against that variable, thus the call to erase_mtab() will never be
made.

When compiling for arm using gcc 3.3.3 with FEATURE_MTAB_SUPPORT disabled,
the linker complains that it can't find erase_mtab().  The arm optimizer isn't
exactly the brightest member of the family, and apparently needs to be hit over
the head with a hammer to get its' attention...
2005-08-23 20:03:17 +00:00
Rob Landley
6a6798b8e4 Major rewrite of mount, umount, losetup. Untangled lots of code, shrunk
things down a bit, fixed a number of funky corner cases, added support for
several new features (things like mount --move, mount --bind, lazy unounts,
automatic detection of loop mounts, and so on).  Probably broke several
other things, but it's fixable.  (Bang on it, tell me what doesn't work for
you...)

Note: you no longer need to say "-o loop".  It does that for you when
necessary.

Still need to add "user mount" support, which involves making mount suid.  Not
too hard to do under the new infrastructure, just haven't done it yet...

The previous code had the following notes, that belong in the version
control comments:

- * 3/21/1999   Charles P. Wright <cpwright@cpwright.com>
- *             searches through fstab when -a is passed
- *             will try mounting stuff with all fses when passed -t auto
- *
- * 1999-04-17  Dave Cinege...Rewrote -t auto. Fixed ro mtab.
- *
- * 1999-10-07  Erik Andersen <andersen@codepoet.org>.
- *              Rewrite of a lot of code. Removed mtab usage (I plan on
- *              putting it back as a compile-time option some time),
- *              major adjustments to option parsing, and some serious
- *              dieting all around.
- *
- * 1999-11-06  mtab support is back - andersee
- *
- * 2000-01-12   Ben Collins <bcollins@debian.org>, Borrowed utils-linux's
- *              mount to add loop support.
- *
- * 2000-04-30  Dave Cinege <dcinege@psychosis.com>
- *             Rewrote fstab while loop and lower mount section. Can now do
- *             single mounts from fstab. Can override fstab options for single
- *             mount. Common mount_one call for single mounts and 'all'. Fixed
- *             mtab updating and stale entries. Removed 'remount' default.
- *
2005-08-10 20:35:54 +00:00
Eric Andersen
93d7fba892 Tito, farmatito at tiscali dot it writes:
Hi to all,
This patch is useful for:
1) remove an unused var from extern char *find_real_root_device_name(const char* name)
    changing it to extern char *find_real_root_device_name(void).
2) fixes include/libbb.h, coreutils/df.c, util-linux/mount.c and  util-linux/umount.c accordingly.
3) fixes a bug, really a false positive,  in find_real_root_device_name() that happens if
    in the /dev directory exists a link named root (/dev/root) that should be skipped but
    is not. This affects applets like df that display wrong results
2004-08-03 00:14:02 +00:00
Eric Andersen
c7bda1ce65 Remove trailing whitespace. Update copyright to include 2004. 2004-03-15 08:29:22 +00:00
Glenn L McGrath
15a4f1ee50 Patch from Chris Larson (kergoth), to allow multiple directores to be
unmounted at once.
2004-02-22 11:35:13 +00:00
Eric Andersen
cb81e6484d Update a bunch of docs. Run a script to update my email addr. 2003-07-14 21:21:08 +00:00
Eric Andersen
9d7f0f0fe8 Somewhere in the 2.4.x kernel series, /proc/mounts was changed to display a
"rootfs" entry as well as the traditional "/dev/root" entry.  This caused
applets such as mount and df to display two root filesystem entries....

This teaches the relevant utilities to ignore the "rootfs" entry.
 -Erik
2003-06-20 09:36:49 +00:00
Manuel Novoa III
cad5364599 Major coreutils update. 2003-03-19 09:13:01 +00:00
Aaron Lehmann
a170e1c858 Change if(x)free(x); to free(x); 2002-11-28 11:27:31 +00:00
Matt Kraai
1f0c43668a Remove == TRUE' tests and convert != TRUE' and `== FALSE' tests to use !. 2001-12-20 23:13:26 +00:00
Eric Andersen
bdfd0d78bc Major rework of the directory structure and the entire build system.
-Erik
2001-10-24 05:00:29 +00:00
Eric Andersen
8a915880e7 Teach libc5 about realpath
-Erik
2001-08-02 09:55:58 +00:00
Eric Andersen
c911a4389b Patch from Vladimir:
1) fixed a bug that could crash df, mount, and umount applets if the root
    device name was longer then the word "root" (/dev/loop1 vs /dev/root) -
    2) severl functions needed static declaration in the umount applet
    3) update declaration for function in last_char_is() in libbb
2001-05-15 17:42:16 +00:00
Matt Kraai
adcbc12d85 Canonicalize path before trying to unmount it. 2001-05-02 21:24:51 +00:00
Eric Andersen
c4cef5ab06 Move the mtab support stuff into libbb
-Erik
2001-04-01 16:01:11 +00:00
Eric Andersen
1ca20a7747 A nice patch from Larry Doolittle that adds -Wshadow and
cleans up most of the now-revealed problems.
2001-03-21 07:34:27 +00:00
Eric Andersen
cbe31dace5 It turns out that DODMALLOC was broken when I reorganized busybox.h
header file usage before the 0.49 release.  To fix it, I had to move
the '#include "busybox.h"' to the end of the list of #include files.
 -Erik
2001-02-20 06:14:08 +00:00
Eric Andersen
67991cf824 This patch, put together by Manuel Novoa III, is a merge of work
done by Evin Robertson (bug#1105) and work from Manuel to make
usage messages occupy less space and simplify how usage messages
are displayed.
2001-02-14 21:23:06 +00:00
Matt Kraai
dd19c69904 Removed trailing \n from error_msg{,_and_die} messages. 2001-01-31 19:00:21 +00:00
Eric Andersen
8ec10a9483 Fix up copyright msgs. Bump version to 0.49 in preparation for
a release.  Update the website with release details.
 -Erik
2001-01-27 09:33:39 +00:00
Eric Andersen
ed3ef50c23 Fix header file usage -- there were many unnecessary header files included in
busybox.h which slowed compiles.  I left only what was needed and then fixed up
all the apps to include their own header files.  I also fixed naming for pwd.h
and grp.h functions.  Tested to compile and run with libc5, glibc, and uClibc.
 -Erik
2001-01-27 08:24:39 +00:00
Mark Whitley
59ab025363 #define -> static const int. Also got rid of some big static buffers. 2001-01-23 22:30:04 +00:00
Matt Kraai
fd4c58d7c5 Fix the exit status of umount -a, a casualty of the TRUE/FALSE normalization.
Thanks to Francois-R Boyer <boyerf@IRO.UMontreal.CA> for the report.
2001-01-17 00:12:11 +00:00
Matt Kraai
a9819b2908 Use busybox error handling functions wherever possible. 2000-12-22 01:48:07 +00:00
Mark Whitley
f57c944e09 Changed names of functions in utility.c and all affected files, to make
compliant with the style guide. Everybody rebuild your tags file!
2000-12-07 19:56:48 +00:00
Matt Kraai
92ed8a3519 Fix exit status on failure. 2000-12-06 15:55:23 +00:00
Matt Kraai
3e856ce428 Stop using TRUE and FALSE for exit status. 2000-12-01 02:55:13 +00:00
Eric Andersen
3570a34de4 Renamed "internal.h" to the more sensible "busybox.h".
-Erik
2000-09-25 21:45:58 +00:00
Eric Andersen
b040d4f3da Use BB_FEATURE_CLEAN_UP where appropriate
-Erik
2000-07-25 18:01:20 +00:00
Matt Kraai
bf181b9338 Extract usage information into a separate file. 2000-07-16 20:57:15 +00:00
Matt Kraai
d537a95fdb Use errorMsg rather than fprintf. 2000-07-14 01:51:25 +00:00
Matt Kraai
be84cd4ef6 Always report the applet name when doing error reporting. 2000-07-12 17:02:35 +00:00
Eric Andersen
a57ba4db64 Argh. More cross libc cleanup. Should be ok now...
-Erik
2000-07-08 19:20:49 +00:00
Eric Andersen
2cd439f7f0 More cleanup on umount
-Erik
2000-07-08 19:10:29 +00:00
Eric Andersen
bd22ed8067 Update files to reduce dependance on kernel version...
-Erik
2000-07-08 18:55:24 +00:00
Eric Andersen
bd4a75f6c8 Finish off the libc5 porting effort. Everything now works with libc5
except for md5sum, which uses the GNU libc addition getline().
 -Erik
2000-06-19 20:03:48 +00:00
Eric Andersen
e1e23eecab Make umount work and compile cleanly under libc5 and libc6.
-Erik
2000-06-19 18:38:51 +00:00
Erik Andersen
7ab9c7ee52 Lots of updates. Finished implementing BB_FEATURE_TRIVIAL_HELP
which lets you compile out most of the "--help" output, saving
up to 17k.

Renamed mnc to nc.
 -Erik
2000-05-12 19:41:47 +00:00
Erik Andersen
6c5f2c6021 Add support for "noatime" and "nodiratime" mount flags to mount.
Change umount "-f" to mean force, and actually use umount2.
Change umount "-l" to mean "Do not free loop device".
Updates docs accordingly.
 -Erik
2000-05-05 19:49:33 +00:00
Erik Andersen
0a704e8ff6 Remove BB_FEATURE_REMOUNT (small, and should always be present)
and fix documentation dependancy checks, so it is only built when
it should be built.
 -Erik
2000-05-03 03:19:06 +00:00