Commit Graph

4451 Commits

Author SHA1 Message Date
Eric Andersen
f91b9282a3 Felipe Kellermann writes:
The Togg's sysklogd patch to use sendto() on remote logging is formatting
strangely (using `<' and '>' surrounding the `msg' string message).  This
is OK, but this is not the standard way of formatting this message.

So this patch does the following:

o Fix the formatting to the standard way.
o Uses `MAXLINE' when needed;
o Don't loop sending messages without a "sleeping time",
  I'm now doing `now = 1', `now <<= 1';
o Don't die on `init_RemoteLog' when starting up (feature!)
  We're now trying to connect every time we have an invalid fd;
o Removes one static uneeded variable.
o Removes two automatic uneeded variables.
2004-09-08 10:56:06 +00:00
Eric Andersen
4a79c0e9e1 Patrick Huesmann noticed BusyBox would not link when
CONFIG_FEATURE_COMMAND_EDITING was defined *and*
CONFIG_FEATURE_COMMAND_TAB_COMPLETION was undefined.

Vladimir N. Oleynik writes:

Its declare always, also if CONFIG_FEATURE_COMMAND_TAB_COMPLETION
undefined.
Patch to CVS version attached.

--w
vodz
2004-09-08 10:01:07 +00:00
Eric Andersen
fd7a4c8c28 Jonas Holmberg from axis dot com writes:
This patch makes msh handle variable expansion within backticks more
correctly.

Current behaviour (wrong):
--------------------------

BusyBox v1.00-rc3 (2004.08.26-11:51+0000) Built-in shell (msh)
Enter 'help' for a list of built-in commands.

$ A='`echo hello`'
$ echo $A
`echo hello`
$ echo `echo $A`
hello
$


New behaviour (correct):
------------------------

BusyBox v1.00-rc3 (2004.08.26-11:51+0000) Built-in shell (msh)
Enter 'help' for a list of built-in commands.

$ A='`echo hello`'
$ echo $A
`echo hello`
$ echo `echo $A`
`echo hello`
$

The current behaviour (wrong according to standards) was actually my
fault. msh handles backticks by executing a subshell (which makes it
work on MMU-less systems). Executing a subshell makes it hard to only
expand variables once in the parent. Therefore I export all variables
that will be expanded within the backticks and let the subshell handle
the expansion instead.

The bug was found while searching for security leaks in CGI-scripts.
Current behaviour of msh makes it easy to expand backticks by mistake
in $QUERY_STRING. I recommend appling the patch before release of bb
1.00.

/Jonas
2004-09-02 23:13:10 +00:00
Eric Andersen
7b08cdd98c No longer needed 2004-09-02 23:11:53 +00:00
Eric Andersen
45a0513a64 Based on patches from Mike Frysinger, add insmod support for
sparc and ia64 (itanium).

Also, reorganize the insmod architecture support code to be
alphasorted and less messy.

Update the readme to list current insmod arch support.
2004-09-02 23:03:25 +00:00
Eric Andersen
192c35f6eb Tito writes:
The second patch contains:
1) a size optimization for adduser.c
2) removes a warning about an unused variable in syslogd.c if CONFIG_FEATURE_REMOTE_LOG is not set
3)cosmetic fixes for addgroup_full_usage and adduser_full_usage

Ciao,
Tito
2004-09-02 22:22:17 +00:00
Eric Andersen
7eb79fff10 Tito writes:
Hi Erik,
Hi to all,
This is part five of the my_get*id story.
I've tweaked a bit this two functions to make them more flexible,
but this changes will not affect existing code.
Now they work so:
1) my_getpwuid( char *user, uid_t uid, int bufsize)

   if bufsize is > 0 char *user cannot be set to NULL
                     on success username is written on static allocated buffer
                     on failure uid as string is written to buffer and NULL is returned
   if bufsize is = 0 char *user can be set to NULL
                     on success username is returned
                     on failure NULL is returned
   if bufsize is < 0 char *user can be set to NULL
                     on success username is returned
                     on failure an error message is printed and the program exits

  2) 1) my_getgrgid( char *group, uid_t uid, int bufsize)

   if bufsize is > 0 char *group cannot be set to NULL
                     on success groupname is written on static allocated buffer
                     on failure gid as string is written to buffer and NULL is returned
   if bufsize is = 0 char *group can be set to NULL
                     on success groupname is returned
                     on failure NULL is returned
   if bufsize is < 0 char *group can be set to nULL
                     on success groupname is returned
                     on failure an error message is printed and the program exits

This changes were needed mainly for my new id applet.
It is somewhat bigger then the previous but matches the behaviour of GNU id
and is capable to handle usernames of whatever length.
BTW: at a first look it seems to me that it will integrate well (with just a few changes)
with the pending patch  in patches/id_groups_alias.patch.
The increase in size is balanced by the removal of my_getpwnamegid.c
from libbb as this was used only in previous id applet and by size optimizations
made possible in whoami.c and in passwd.c.
I know that we are in feature freeze but I think that i've tested it enough
(at least I hope so.......).
2004-09-02 22:21:41 +00:00
Eric Andersen
b225e2a76b Fixup some warnings 2004-08-28 00:43:07 +00:00
Eric Andersen
785001468d Quiet a few warnings 2004-08-27 19:55:28 +00:00
Eric Andersen
75813eea23 Togg writes:
Syslogd wont start if remote-logging is enabled and the connection to the
remote-log server is not possible on syslogd startup.

I found a patch somewhere which works like a charm. It uses sendto() which
seems more reliable for this issue.

Please see attached patch. Many people will be more happy with this included
I think.

Regards,
Togg
2004-08-26 23:15:29 +00:00
Eric Andersen
138791050d Improve the setuid situation a bit, and make it more apparent
when people really ought to make busybox setuid root.
 -Erik
2004-08-26 23:13:00 +00:00
Eric Andersen
37ba6bfb6d The login applet should always be setuid root 2004-08-26 23:01:34 +00:00
Eric Andersen
095dd0c46d Tito writes:
Hi,
I've fixed also the issue of whoami cutting down usernames.
This time I cannot send a diff because i don't know if my previous patches will be applied
or not, so I send in the whole file.
The changes I've made don't affect size but ensure that usernames of whatever lenght
are correctly displayed.
root@localhost:/dev/pts/3:/root/Desktop/busybox/coreutils# size whoami_orig.o
   text    data     bss     dec     hex filename
    102       0       0     102      66 whoami_orig.o
root@localhost:/dev/pts/3:/root/Desktop/busybox/coreutils# size whoami.o
   text    data     bss     dec     hex filename
     93       0       0      93      5d whoami.o

This should be applied even if the other patches aren't as this matches the behaviour of the  GNU whoami.

Thanks in advance,
Ciao,
Tito
2004-08-26 22:36:02 +00:00
Eric Andersen
713d6e3dd3 Save a line or two 2004-08-26 22:26:26 +00:00
Eric Andersen
97a1de10e9 Vladimir N. Oleynik writes:
Ming-Ching,

>>No. Here there are no mistakes.
>>You using POST metod.
>>For get data you should read from stdin CONTENT_LENGTH bytes.

>Hower as I posted a little while ago, there is indeed a bug
>in POST method if the CONTENT_LENGTH is bigger
>than sizeof(wbuf[128]). So if your CGI script is expecting to
>read the full CONTENT_LENGTH, it might block forever,
>because it will only transfer sizeof(wbuf) to the CGI.

Ok, Ok. I should find time to understand with a problem.
Try attached patch.


--w
vodz
2004-08-26 22:22:50 +00:00
Eric Andersen
52499cb9ae Tito writes:
Hi,
I've spent the half night staring at the devilish  my_getpwuid and my_getgrgid functions
trying to find out a way to avoid actual and future potential buffer overflow problems
without breaking existing code.
Finally I've  found a not intrusive way to do this that surely doesn't break existing code
and fixes a couple of problems too.
The attached patch:
1) changes the behaviour of my_getpwuid and my_getgrgid to avoid potetntial buffer overflows
2) fixes all occurences of this function calls in tar.c , id.c , ls.c, whoami.c, logger.c, libbb.h.
3) The behaviour of tar, ls and  logger is unchanged.
4) The behavior of ps with somewhat longer usernames messing up output is fixed.
5) The only bigger change was the increasing of size of the buffers in id.c to avoid
     false negatives (unknown user: xxxxxx) with usernames longer than 8 chars.
     The value i used ( 32 chars ) was taken from the tar header ( see gname and uname).
     Maybe this buffers can be reduced a bit  ( to 16 or whatever ), this is up to you.
6) The increase of size of the binary is not so dramatic:
     size busybox
       text    data     bss     dec     hex filename
     239568    2300   36816  278684   4409c busybox
    size busybox_fixed
       text    data     bss     dec     hex filename
     239616    2300   36816  278732   440cc busybox
7) The behaviour of whoami changed:
    actually it  prints out an username cut down to the size of the buffer.
    This could be fixed by increasing the size of the buffer as in id.c or
    avoid the use of my_getpwuid and use getpwuid directly instead.
    Maybe this colud be also remain unchanged......

Please apply if you think it is ok to do so.
The diff applies on today's cvs tarball (2004-08-25).
Thanks in advance,
Ciao,
Tito
2004-08-26 22:18:59 +00:00
Eric Andersen
6fea7328ee Felipe Kellermann writes:
Unfortunatelly I've not followed the last two or three weeks commits (new
semester started and so now I rarely have time to fix my personal bridge)
but tonight I synched my tree and immediately noticed a rather nasty bug!

[Using libbb/interface.c:1.24]
# grep eth0 /proc/net/dev | xargs
eth0:311708397 237346 1670 0 1789 1670 0 0 22580308 120297 0 0 0 102 0 0

# ifconfig eth0
eth0      Link encap:Ethernet  HWaddr 00:20:AF:7C:EA:B7
          inet addr:10.0.0.1  Bcast:10.0.0.127  Mask:255.255.255.128
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
          Interrupt:5 Base address:0x320


All values `ifconfig' is showing are `zeroed' -- I quickly looked at the
last commits I missed and noticed that there were a commit relating to
ifconfig, libbb/interface.c:1.23->1.24 (PatchSet 4338).

I've reversed the patch and now everything is working again.  I compared
the get_name's return values from the 1.23 and 1.24 and quickly noticed
that the new revision is leaving `p' right on the sep while the rev 1.23
was leaving it right on the starting of the values...

1-line, 1/3-minute patch attached  :-)
2004-08-26 21:45:21 +00:00
Glenn L McGrath
b619419962 Patch from Manousaridis Angelos to cleanup stale file descriptors, it was preventing unmounting an initial filesystem. 2004-08-25 02:02:19 +00:00
Eric Andersen
a4d27d2d38 Patch from Rodney Radford adding x86_64 support. 2004-08-19 19:17:30 +00:00
Eric Andersen
a9eb33ddc7 regularly update the status line display
-Erik
2004-08-19 19:15:06 +00:00
Eric Andersen
807bd846b6 Patch from Mike Castle to cleanup some modutils issues, in
particular making alias support work better.
2004-08-19 18:30:31 +00:00
Eric Andersen
a4fcccefa6 Patch from Tito adding support for '-q' 2004-08-19 18:26:26 +00:00
Eric Andersen
b131db4326 Patch from Tito documenting the '-q' option 2004-08-19 18:25:02 +00:00
Eric Andersen
cb01bb1d68 Patch from Vladimir N. Oleynik:
On Wed Aug 18, 2004 at 06:52:57PM +0800, Matt Johnston wrote:
> I've come across some strange-seeming behaviour when running programs
> under Busybox (1.0.0-rc3) ash. If the child process sets stdin to be
> non-blocking and then exits, the parent ash will also exit. A quick strace
> shows that a subsequent read() from stdin returns EAGAIN (as would be
> expected):

Thanks!
Patch attached.


--w
vodz
2004-08-19 18:22:13 +00:00
Eric Andersen
9ab4657c89 Fixup 'dc' usage 2004-08-18 17:57:16 +00:00
Eric Andersen
b36900c4b4 Prepare for release 2004-08-16 10:29:29 +00:00
Eric Andersen
85ae1bb67d Bump version 2004-08-16 10:23:33 +00:00
Eric Andersen
e3a792c80c Only pass modprobe module params with 2.6.x kernel support.
-Erik
2004-08-16 10:22:34 +00:00
Eric Andersen
1f50e84283 Do not use vfork, as init is not vfork safe. Do not allow
askfirst when mmuless.
2004-08-16 09:29:42 +00:00
Eric Andersen
88e38ca2fb Bertrand Baudet writes:
Looks like the -D and -H options of the adduser applet aren't handle
properly in BusyBox.

This patch fixes the masks definition for those options according to
there position in the optstring.

Patch against RC2 but should also apply cleanly against CVS.

Bertrand
2004-08-16 09:07:39 +00:00
Eric Andersen
acd647c877 Joe.C writes:
This bug is in busybox 1.0.0-rc2. When using lash exec
builtin with redirection, the opened file fd keep increasing.
For example, please try the following command with lash.


ls -al /proc/<lash pid>/fd
exec /bin/sh 2>/dev/null
ls -al /proc/<lash pid>/fd

  The last 'ls' command output will look like this. The fd
number 4 shouldn't exist.

lrwx------    1 501      100         64 Aug 13 13:56 4 -> /dev/pts/5
l-wx------    1 501      100         64 Aug 13 13:56 2 -> /dev/null
lrwx------    1 501      100         64 Aug 13 13:56 1 -> /dev/pts/5
lrwx------    1 501      100         64 Aug 13 13:56 0 -> /dev/pts/5
dr-xr-xr-x    3 501      100          0 Aug 13 13:56 ..
dr-x------    2 501      100          0 Aug 13 13:56 .

  This one-line patch fix this problem by setting CLOEXEC flag for
squirrel fd. Please apply.

Joe.C
2004-08-16 08:38:34 +00:00
Eric Andersen
0722513497 Use __kernel_old_dev_t for 2.6.x kernels 2004-08-16 08:36:28 +00:00
Eric Andersen
cf6ef05711 Aurelien Jacobs writes:
with a quick conversion you will see that 132608 == 0x20600
so noticed that the elif will never be matched !
Apparently there was already a try to modify this in CVS which
was reverted (it was plain wrong).

I don't know when __kernel_old_dev_t is needed, but with a 2.6.7
or a 2.6.8 this is __kernel_dev_t wich is needed.

I corrected this with the following patch but maybe older 2.6
still need __kernel_old_dev_t ?

I think this should be corrected before 1.0.

Thanks
Aurel
2004-08-16 08:29:44 +00:00
Eric Andersen
beaef16315 Christian Ostheimer writes:
Hello,

function build_dep in modprobe.c assumes that dependencies of one module
have not more than 255 chars;
that is not sufficient in kernel 2.6.7 (alsa sound modules). - Below is
a diff that solves the problem for me.

With regards, Christian Ostheimer
2004-08-14 20:57:33 +00:00
Eric Andersen
9940e081c9 Patch from solar to fix problems with get_name() 2004-08-12 16:52:00 +00:00
Glenn L McGrath
4014ab1c60 Set default command to list rather than get, its default behaviour now
coincides with upstream. Patch from debian diff.
2004-08-11 08:10:58 +00:00
Glenn L McGrath
fcf47321d4 Patch from Mike Castle, dont print an empty line (patch modified by me to
change formatting).
2004-08-11 05:56:30 +00:00
Glenn L McGrath
18bbd9bf3b Patch from Tito to fix memory leak upon error. 2004-08-11 03:50:30 +00:00
Glenn L McGrath
73db8be80a Patch from Bastian Blank to add 64 bit support to the test command.
Example of broken usage: ./busybox test 2147483648 -gt 2147483648
2004-08-11 02:45:47 +00:00
Glenn L McGrath
d2c6f9a1f9 Patch from Phil Blundellto improve substring match 2004-08-11 02:32:18 +00:00
Glenn L McGrath
65c8c7ba27 Willian Barsse wrote
"There seems to be a slight problem with the "mod_strcmp" function in
modprobe.c, it scans for the first occurence of the module name in the
"mod_path" variable and expects it to be the last path element. ie
/lib/modules/2.4.22-debug/kernel/fs/vfat in my example. The comparison
will always fail if mod_path contains another substring matching the
module name."

Robert McQueen wrote
"Although William Barsse's patch fixed mod_strcmp for 2.4 kernels, there
was a remaining problem which prevented it from working for me. I've
just tracked it down - when you enable kernel 2.6 module support it
hard-wired the extension to .ko instead of checking at runtime like the
other places where 2.4 differs from 2.6. The attached patch fixes this
for me."
2004-08-11 02:30:30 +00:00
Glenn L McGrath
2f325a030b Patch from Tito to fix warnings about redifined functionions barrier and likely. 2004-08-06 01:49:04 +00:00
Glenn L McGrath
12ed333714 Part of patch from William Barsse, fixes a problem with unescaped %. 2004-08-06 00:58:53 +00:00
Eric Andersen
12de6cf0d7 Michael Leibow, MichaelLe at belkin.com writes:
A question was posted a month ago by Mark Alamo to see if others had
problems with sourcing subscripts within msh.  We asked his firm to fix the
msh.c bug he described because we didn't have enough time to do it
ourselves.

When msh.c is executing a compound statement and there is a . command to
source another script file, msh.c will not execute the subscript until it's
completed executing the rest of the compound statement.

His example was this:

Echo "Start" ; . ./subA; echo "mid" ; . ./subB ; echo "end"

subA and subB execute AFTER end is printed in reverse order.  The same is
true if the sourced files are inside an if else fi, case esac, or any
compound statement.

Attached is a patch to msh.c.  It fixes the problem.  Cd to the root of your
busybox tree and execute "patch -p1 < msh.c.patch"

Unfortunately, I won't have more time to work on this so I hope that there
aren't any problems!

Michael Leibow
Senior Software Engineer

Belkin Corporation
2004-08-04 19:19:10 +00:00
Eric Andersen
8401eeafd6 Run msh through indent 2004-08-04 19:16:54 +00:00
Eric Andersen
44b5758247 William Barsse writes:
fixes two other issues (plus the previous as well) with a 2.4 kernel :

- should be able to modprobe an already loaded module and get 0 return
code :
# modprobe <something> && modprobe <something> && echo "ok" || echo "failed"
....
failed

Well, hope this helps and that I didn't screw up again,
- William
2004-08-03 08:23:33 +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
ec91de762a fixup cut-n-paste problem 2004-08-01 18:54:45 +00:00
Eric Andersen
67776bef59 Simon Poole reports that awk segfaults when environment variables
with no value exist, i.e.

	$ export BOB=''
	% ./busybox awk
	Segmentation fault

This patch teaches awk to not blow chunks on empty env variables.
 -Erik
2004-07-30 23:52:08 +00:00
Eric Andersen
cbcdbc41ff Fix incorrect arguments being passed to mknod 2004-07-30 17:48:21 +00:00