Commit Graph

145 Commits

Author SHA1 Message Date
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
Paul Fox
0b62158475 implemented a builtin echo command in ash. moved the guts of the
echo applet into libbb, and now call bb_echo() from both echo.c
and ash.c
2005-08-09 19:38:05 +00:00
Rob Landley
193c8c7383 #ifdef reduction infrastructure, based on an argument between Shaun Jackman,
Rob Landley, and others.

Currently CONFIG options are defined or undefined, so we chop out code with
#ifdefs, ala:
#ifdef CONFIG_THING
  stuff();
#endif

This creates a new header file, bb_config.h, which sets the CONFIG entry to 1
or 0, and lets us do:

  if(CONFIG_THING) stuff();

And let the compiler do dead code elimination to get rid of it.  (Note: #ifdef
will still work because for the 1 case it's a static const int, not a #define.)
2005-07-27 06:55:36 +00:00
Mike Frysinger
348e84c202 change the hardcoded error constant (0x80000000UL) to a nice flexible define (BB_GETOPT_ERROR) 2005-05-11 00:39:03 +00:00
Rob Landley
60158cb93e A patch from Takeharu KATO to update/fix SE-Linux support. 2005-05-03 06:25:50 +00:00
Rob Landley
e3752e56a4 Revert Tito's patch to zcip. My bad, David Brownell had objected and I missed
it...
2005-05-03 03:28:55 +00:00
Rob Landley
8445a9ff99 On Tuesday 19 April 2005 21:10, Tito wrote and today added:
> Hi,
> this is a first attempt of size optimization for zcip taking into account all
> the hints given so far on the list.
> I've applied just the more obvious busyboxifications so maybe it could be
> optimized more.
BTW: I've ripped out  a lot of debug code and changed c++ // comments to /* */
as both were rather confusing for a newbie like me. ;-) 
Sorry to the author for that.
I know that this makes mantaining the code easier, but I'm simple minded....
2005-05-01 00:22:03 +00:00
Eric Andersen
3cd1986195 Add bb_msg_read_error 2005-04-16 07:42:35 +00:00
Rob Landley
c0dedd05e8 Sort rewrite to be SUSv3 compliant. New config option, updated help, and
a couple of infrastructure bits.
2005-01-24 07:00:02 +00:00
Glenn L McGrath
f15dfc5570 Tito writes,
"This patch fixes all the bugs in id previously spotted by vodz and me.
The binary size increased a bit,  but now it should work as expected."
2004-09-15 03:04:08 +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
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
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
36adca81f5 Patch from Bastian Blank:
On Sat, Jun 19, 2004 at 10:57:37PM +0200, Bastian Blank wrote:
> The following patch changes klogd to use openlog/syslog themself
> instead of calling syslog_msg which always calls the triple
> openlog/syslog/closelog.

Updated patch: get rid of syslog_msg entirely. Request from Erik Andersen.

Bastian
2004-06-22 10:07:17 +00:00
Eric Andersen
ed9ecf7894 Patch from Bastian Blank:
The updated patch adds a config option to explicitely enable 64 bit
    arithmetic.

    Also it removes the arith prototype from libbb.h as it is not used
    outside of ash.

    Bastian

this patch has been slightly modified by Erik for cleanliness.
2004-06-22 08:29:45 +00:00
Eric Andersen
6f9a7783ce Do not use getpass(3) 2004-05-01 01:27:30 +00:00
Eric Andersen
c7bda1ce65 Remove trailing whitespace. Update copyright to include 2004. 2004-03-15 08:29:22 +00:00
Eric Andersen
3cac0c7d7f Add prototypes for safe_strtol and friends 2004-03-12 22:08:13 +00:00
Glenn L McGrath
15c3512614 Sometimes i get carried away with the use of function pointers, im sure
it seemed like a good idea at the time.
2004-02-21 09:20:56 +00:00
Manuel Novoa III
68474f3b36 Make sure stdlib.h is always included before dmalloc.h to avoid problems
parsing problems.
2004-02-05 14:45:58 +00:00
Glenn L McGrath
036dbaa082 Modify bb_lookup_port to allow the protocol to be specified, allowing
/etc/services support for inetd, netcat and tftp.
2004-01-17 05:03:31 +00:00
Glenn L McGrath
ffccf6eb5d Change interface to bb_lookup_host, dont try and set port inside this
function as there is no gracefull way of handling failures.
Rename bb_getport to bb_lookup_port, allow a default port to be
specified so it always returns a correct value.
Modify ftpgetput/rdate/wget to use the new interface.
wget/rdate now use etc/services with a falback default value.
2003-12-20 01:47:18 +00:00
Russ Dill
a1fece2c70 Get vfork_daemon_rexec working under uclinux 2003-12-15 21:57:44 +00:00
Glenn L McGrath
7ffe133864 As we no longer use function pointers for read in common archiving code
archive_xread can be replaced with bb_full_read, and archive_copy_file
with bb_copyfd*
bb_copyfd is split into two functions bb_copyfd_size and bb_copyfd_eof,
they share a common backend.
2003-11-21 22:24:57 +00:00
Glenn L McGrath
78cd84da8a Dont over-read fd, use function pointer for hash function. 2003-11-20 21:30:58 +00:00
Glenn L McGrath
d85421de22 Include stdint.h 2003-11-20 05:26:38 +00:00
Eric Andersen
5f28455c6e Oskar Liljeblad writes:
Here's a fix for the hard-coded device name in fbset.
2003-11-14 03:11:29 +00:00
Glenn L McGrath
d2a897aab0 Merge common parts of sha1sum and md5sum, which is everything except the
algorithms.
Move algorithms to hash_fd and make them available via a common
function.
2003-11-10 04:33:55 +00:00
Eric Andersen
04d055f4e1 Fix rdate and ftpget/ftpput so they compile with the new xconnect.
I have checked rdate.  Someone should also check ftpget/ftpput to
be sure they still work.
2003-11-03 21:20:18 +00:00
Eric Andersen
e6dc439b3a Rework wget, the xconnect interface, and its various clients
in order to fix the problems with round robin DNS reported
by Andrew Flegg:
    http://busybox.net/lists/busybox/2003-October/009579.html

This removes the ipv6 specific xconnect dns lookups.  I do
not see why that would need to be special cased for ipv6 as
was done, but that will just have to be tested.

So IPV6 people -- please test this change!

 -Erik
2003-10-31 09:31:46 +00:00
Eric Andersen
dae099b2f9 We did not have a safe_write, which is the analog to safe_read. Convert
full_write to use safe_write internally, which is needed to guarantee proper
behavior, i.e. when writing to a pipe.
2003-10-09 08:35:42 +00:00
Glenn L McGrath
aa5a602689 Patch by Rob Landley, work in progress update, fixes lots of bugs,
introduces a few others (but they are being worked on)
2003-10-01 03:06:16 +00:00
Glenn L McGrath
eebcc1d98a Add the "install" applet, move get_ug_id to libbb as its used by chown,
chgrp and install.
2003-09-24 03:22:57 +00:00
Eric Andersen
8efe967018 Be entirely consistant when using ioctl(0, TIOCGWINSZ, &winsize)
to ensure proper fallback behavior on, i.e. serial consoles.
 -Erik
2003-09-15 08:33:45 +00:00
Glenn L McGrath
99bd5adf99 more crond+crontab integrating with loginutil libbb functions and deleted
patch from Thomas Gleixner to init.
Viodz last_patch_108
2003-09-03 12:18:42 +00:00
Glenn L McGrath
dc4e75ef7c move all "-/bin/sh" "/bin/sh" and "sh" to libbb/messages.c file as one
constant.
Vodz last_patch_107
2003-09-02 02:36:18 +00:00
Eric Andersen
97e2426582 "staywithu" writes:
In BusyBox v1.00-pre2,
 commands like ls, df with -h option report a wrong file size for files larger than 4GBtye!!

For example,
   when I execute 'ls -l', it reports
      -rw-r--r--      1 root       root    5368709120    Aug    17  2003  large_stream.tp

   when I execute 'ls -lh', I expect that
      -rw-r--r--      1 root       root                5.0G    Aug    17  2003  large_stream.tp

  but it reports
      -rw-r--r--      1 root       root                1.0G    Aug    17  2003  large_stream.tp

I fixed this bug that...
 Line 31 in libbb/human_readable.c and line 275 include/libbb.h

     const char *make_human_readable_str(unsigned long size
      =>   const char *make_human_readable_str(unsigned long long size

It's OK!
2003-08-22 23:08:37 +00:00
Eric Andersen
546f21aa2d Remove code that too agressively disabled inlines 2003-08-01 22:27:57 +00:00
Eric Andersen
2a186890ee Bruno Randolf writes:
this patch fixes run_parts when it's called by ifupdown. 1) argv has to be a
NULL terminated char* array, not just a string. 2) run_parts now explicitly
sets the environment. this environment is populated from the
/etc/network/interfaces config file and is needed by the scripts in
/etc/network/if-pre-up.d/. when run-parts is called from the command line the
environment is taken from the current process.


Vladimir Oleynik then wrote:

You can simplify this if use:

+       bb_xasprintf(&buf[0], "/etc/network/if-%s.d", opt);
+       buf[1] = NULL;
+
+       run_parts(&buf, 2, environ);
+       free(buf[0]);

--w
vodz
2003-07-29 07:05:40 +00:00
Eric Andersen
35e643b39f last_patch95 from vodz:
Hi.

Last patch have new libbb function
vfork_rexec() for can use daemon() to uClinux system.
This patched daemons: syslog, klogd, inetd, crond.
This not tested! I havn`t this systems.
Also. Previous patch for feature request MD5 crypt password for
httpd don`t sended to this mailist on 07/15/03
(mailist have Pytom module problem?).
The previous patch included, and have testing.


--w
vodz
2003-07-28 07:40:39 +00:00
Eric Andersen
85e5e72bc1 Remove remaining libc5 support code 2003-07-22 08:56:55 +00:00
Eric Andersen
592ebd507a Patch from Paul Mundt:
The current SC_x references automatically assume that everyone uses ttyS/tts
    as their naming scheme for their serial ports. This isn't the case for quite
    a few architectures, including sh, sh64, h8, arm, etc.
2003-07-22 07:33:14 +00:00
Eric Andersen
f890f9dd16 This declaration no longer needs to hide when using dmalloc 2003-07-07 06:10:31 +00:00
Eric Andersen
9e48045e45 Patch from Russell Coker:
I've attached my latest SE Linux patch for busybox against the latest CVS
    version of busybox.
2003-07-03 10:07:04 +00:00
Eric Andersen
a3bb3e6e0b Geir Thomassen wrote, regarding networking/httpd.c line 1358
Hello, I think the test for an unconfigured httpd is wrong in
    the CVS (busybox-unstable-20030620.tar.bz2)

    flg_deny_all is default 0

vodz then wrote:

    Oops. You are right.
    Also, this mistake haved from two place.
    Last patch rewroted to my new get_ularg() function for overcompensate size
    from this error found ;-)
2003-06-26 09:05:32 +00:00
Eric Andersen
c9e7024924 Add prototype update missing from last_patch89. Fix screwy
formatting in cut.
2003-06-20 09:16:00 +00:00
Eric Andersen
8876fb2f59 last_patch89 from vodz:
Manuel,

    I rewrite bb_getopt_ulflags() function for more universal usage.
    My version support now:
    - options with arguments (optional arg as GNU extension also)
    - complementaly and/or incomplementaly and/or incongruously and/or list
    options
    - long_opt (all applets may have long option, add supporting is trivial)
    This realisation full compatibile from your version.
    Code size grow 480 bytes, but only coreutils/* over compensate this size
    after using new function. Last patch reduced over 800 bytes and not full
    applied to all. "mkdir" and "mv" applets have long_opt now for demonstrate
    trivial addition support long_opt with usage new bb_getopt_ulflags().
    Complementaly and/or incomplementaly and/or incongruously and/or list options
    logic is not trivial, but new "cut" and "grep" applets using this logic
    for examples with full demostrating. New "grep" applet reduced over 300
    bytes.

    Mark,
    Also. I removed bug from "grep" applet.
    $ echo a b | busybox grep -e a b
    a b
    a b
    But right is printing one only.

    --w
    vodz
2003-06-20 09:01:58 +00:00
Eric Andersen
82ab3d7c3e Make all syscall declarations use the syscall() function 2003-05-26 18:48:56 +00:00
Glenn L McGrath
393183dccc Vodz, last_patch_86 2003-05-26 14:07:50 +00:00
Manuel Novoa III
cad5364599 Major coreutils update. 2003-03-19 09:13:01 +00:00