Commit Graph

189 Commits

Author SHA1 Message Date
Eric Andersen
9ffb7dd9a4 This is a patch from Vladimir:
> I rewrite *local_variable* function in hush.c with:
    > 1) remove many memory leaks
    > 2) add support read_only protect (require write builtin function for set this,
    > I write this special for variable HUSH_VERION=0.01)
    > 3) commad read set only local variable now
    > 4) remove many error messages if "set unset export" not defined variable
    > (bash syntax not put and set error code). Hmm, if I set result to -1, you hush
    > called waitpid and returned with error "no waitpid" ( i not found place this
    > error).
    > 5) destroy error in new version check xgetcwd()==NULL and set "(unknow)" -
    > this have error: crashe in next call `pwd`, but xgetcwd(not null) called
    > free(arg).
    > 6) next add integraion with libbb

Valdimir's patch missed two cases of local variable handling
    FOO=bar
    export FOO=baz
    unset FOO
and
    export FOO=bar
    FOO=baz
which were working before, so I fixed those two cases.
2001-05-19 03:00:46 +00:00
Eric Andersen
bfae2529b8 It turns out job control in both hush and lash was broken by the
signal handling in cmdedit.c.  Disabling it makes the shells behave
themselves again.  hush isn't quite there, but is getting close...
 -Erik
2001-05-17 00:14:27 +00:00
Matt Kraai
59df6f7398 Change 'printf("%s\n", ...)' into 'puts(...)'. Noted and patched in hostname.c
by Larry Doolittle.
2001-05-16 14:21:09 +00:00
Eric Andersen
bc604a2f41 Move init of a bunch of globals into main so we are at least
a bit more reentrant.
 -Erik
2001-05-16 05:24:03 +00:00
Eric Andersen
f72f562b2f Fix the behavior of local shell variables to match that of bash and ash.
-Erik
2001-05-15 23:21:41 +00:00
Eric Andersen
15649c11f3 Oops. I left in some debug noise. 2001-05-15 17:28:26 +00:00
Eric Andersen
20a69a77d2 Write set_local_var() and fixup lookup_param() so you can now use
shell local variables.
 -Erik
2001-05-15 17:24:44 +00:00
Eric Andersen
78a7c99f7f This patch covers one big part of variable handling.
$ a=b foo
should be handled correctly.
$ a=b
is parsed OK, but the actual variable setting is not
yet written.  Except for some weird exceptions related
to quoting rules, this code passes (matches ash behavior)
all the tests I threw at it.

If someone now writes set_local_var(), and updates lookup_param()
to match, we can claim success!

       - Larry
2001-05-15 16:30:25 +00:00
Eric Andersen
cfa88ecb72 Fix up some silly warnings 2001-05-11 18:08:16 +00:00
Eric Andersen
5f265b755a Fix a segfault in lash, hush, and cmdedit. Each of these used
xgetcwd, but did not check the return for a NULL, and then continued
to call strlen on the NULL when the cwd had been removed from under it.
 -Erik
2001-05-11 16:58:46 +00:00
Eric Andersen
9d94deabd3 Use xgetcwd 2001-05-11 16:36:03 +00:00
Eric Andersen
1a6d39b259 A few more structural updates for job control.
-Erik
2001-05-08 05:11:54 +00:00
Eric Andersen
0a36de0580 Fix a stupid segfault caused by dereferencing a NULL ptr.
-Erik
2001-05-08 04:25:46 +00:00
Eric Andersen
45e92ba2ce This patch from Evin Robertson <nitfol@my-deja.com> fixes export so it works.
This way leaks memory, but oh well.  We will probably fix that when we get
around to doing local variables.
2001-05-07 23:53:09 +00:00
Eric Andersen
83a2ae2184 More hush updates from Larry:
Update some comments.  Generate partial placeholders for the missing
    builtins.  Write builtin_umask.  Properly treat exec without arguments
    as a means to open/close files within the running script.  Implement
    "4<&-" that encodes for file descriptor closure.
2001-05-07 17:59:25 +00:00
Eric Andersen
2dcfba7117 Larry's variant on Evin Robertson's fix to what I messed up
trying to make job control work.  This fix makes it so that
hush doesn't error out when init hasn't set up job control,
as in when init=/bin/sh
2001-05-04 22:13:37 +00:00
Matt Kraai
d24f878546 Don't reset parents context when we encounter an terminator. Fixes
if true; then if true; then true; fi; fi
2001-05-04 21:20:20 +00:00
Eric Andersen
e5ffb911e8 If it fails to run a builtin, let it fall through to
exec the real thing.
 -Erik
2001-05-04 16:30:29 +00:00
Matt Kraai
80abc45182 Move up waitpid error check so that errno isn't clobbered by tcsetpgrp. 2001-05-02 21:48:17 +00:00
Eric Andersen
0fcd447d59 Some more job control updates. It will now sucessfully background
stuff.  Good luck getting things back into the foreground though...
 -Erik
2001-05-02 20:12:03 +00:00
Matt Kraai
20a3069ec0 Don't treat newline as pipe separator when processing substitutions. 2001-05-02 17:52:49 +00:00
Matt Kraai
9f8caf134f Fix $(...) construction. Noted and patched by Larry Doolittle
<ldoolitt@recycle.lbl.gov>.  I'm just a patch whore.  :)
2001-05-02 16:26:12 +00:00
Eric Andersen
bafd94f154 First pass at getting job control working. This gets the infrastructure
in place, but something is still missing/wrong in there.  Testing with
'grep foo &' seems to put _hush_ into the background.  Pondering...
 -Erik
2001-05-02 16:11:59 +00:00
Matt Kraai
1c8a59ab95 Use the current pgrp, not pid, when resetting the foreground process group.
Fixes bizarre suspension when executing `echo`.
2001-05-02 15:37:09 +00:00
Matt Kraai
f162e7d09d Don't segfault if the first word is the empty string. 2001-05-02 14:48:48 +00:00
Eric Andersen
e67c3ce327 Another update from Larry:
Makes hush return code equal to that of the last command executed.
    Fixes the mode where input comes from a file.
2001-05-02 02:09:36 +00:00
Eric Andersen
4ed5e37d4b Another hush update from Larry:
Minor improvements.  Something is still broken with running
    scripts via "hush filename".  All the following are now handled
    acceptably (matches ash, not bash).

    if true; then echo foo1; fi
    if
     true; then echo foo2; fi
    if true; false; then echo bar; else echo foo3; fi
    if true || false; then echo foo4; fi

	  - Larry
2001-05-01 01:49:50 +00:00
Eric Andersen
aac75e5a78 Some more hush.c updates from Larry Doolittle. 2001-04-30 18:18:45 +00:00
Eric Andersen
088875fec4 Use BUFSIZ for the_command to match size used in cmdedit 2001-04-27 07:49:41 +00:00
Eric Andersen
af44a0e8f4 An update to hush from Larry:
It should recover more smoothly from syntax errors, and it now
    has a decent guess when the reserved word construct is over
    (or not) to control execution and prompting.  I took out all the
    redundant standalone test copies of libbb routines, but left in a
    hook so I can include those for my testing.  I'll post that include
    file on my web site.

	    - Larry
2001-04-27 07:26:12 +00:00
Eric Andersen
25f2703015 This is the initial checkin of Larry Doolittle's hush.c, using his
April 25, 2001 snapshot, adjusted a bit by me so it has cmdedit support.

This checkin also removes sh.c.  In the future sh.c will be a symlink to
your shell of choice.  For now, this symlink will default to pointing to
lash.c (as in the past).  If you change the symlink to point to hush.c,
then thats what you will get.  This symlink business is a temporary situation,
which will be cleaned up Real Soon Now(tm).

 -Erik
2001-04-26 23:22:31 +00:00
Mark Whitley
4b541a8817 Moved some #ifdefs down below #include "busybox.h" where they belong. 2001-04-25 17:10:30 +00:00
Eric Andersen
ed424dbf1d Some patches from Gennady Feldman. Fixed a glob problem such that
'ls *.h Config.h' works.  Fixed a silly typo with fg/bg process control.
Made cmdedit exit sanely when it cannot read input.
2001-04-23 15:28:28 +00:00
Matt Kraai
4ef40c02f4 Another banner consolidation from Larry Doolittle <ldoolitt@recycle.lbl.gov>. 2001-04-12 20:44:21 +00:00
Matt Kraai
be66ad3212 Fix handling of '' and "". 2001-04-12 15:42:17 +00:00
Eric Andersen
e5dfced23a Apply Vladimir's latest cleanup patch.
-Erik
2001-04-09 22:48:12 +00:00
Eric Andersen
c270ec1fa2 Add support of /W prompts
-Erik
2001-04-05 23:00:47 +00:00
Matt Kraai
2129f97cd9 Avoid segfault when export is invoked with no arguments. Thanks to
Gennady Feldman.
2001-04-04 17:50:04 +00:00
Eric Andersen
84e229cfbe Add in a new standalone env applet for fixing up app's environments
-Erik
2001-03-29 22:48:33 +00:00
Mark Whitley
a82a00397f Fix to last patch: locale code should be 9, not 7. 2001-03-27 17:07:15 +00:00
Mark Whitley
1c6581a865 Applied patch from Vladimir N. Oleynik to add locale support to the shell per
bug report from Ralph Jones.
2001-03-27 16:35:16 +00:00
Eric Andersen
82ab8da245 -Wshadow sh fix from Jeff Garzik 2001-03-23 17:06:01 +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
92d23245c9 Another cleanup patch from Jeff Garzik <jgarzik@mandrakesoft.com> 2001-03-19 23:49:41 +00:00
Eric Andersen
61173a5371 Fix to cmdedit.c from Vladimir 2001-03-19 17:48:55 +00:00
Eric Andersen
341744781a Patch from Larry and Vladimir to clean up sh.c and fix
shell expansion to work in non POSIX locales.
2001-03-17 00:20:10 +00:00
Eric Andersen
4aaefc2a50 Fix from Larry for glob problems.
-Erik
2001-03-15 23:01:19 +00:00
Eric Andersen
f9ff8a7d90 cmdedit.c bugfix patch from Vladimir.
-Erik
2001-03-15 20:51:09 +00:00
Mark Whitley
730cdb1904 Reversed previous patch. The right way is to fix uClibc. 2001-03-15 19:39:40 +00:00
Mark Whitley
0b57e28373 Applied patch from Andreas Neuhaus to fix namespace conflict that made busybox
not compile with uClibc.
2001-03-15 19:12:06 +00:00