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1694 Commits

Author SHA1 Message Date
Denys Vlasenko
ac03a40cba ash,hush: fix a thinko about 2^64-1 factorization 
function                                             old     new   delta
next_random                                          113     119      +6

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2014-03-15 09:25:46 +01:00
Denys Vlasenko
2bba591991 hush: make "true" built-in 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2014-03-14 12:43:57 +01:00
Denys Vlasenko
f93187512d random: cosmetic tweaks in debug code 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2014-03-13 13:03:27 +01:00
Denys Vlasenko
fb183076a3 ash,hush: improve randomness of $RANDOM, add easy-ish way to test it 
function                                             old     new   delta
next_random                                           68     113     +45
change_random                                        103     121     +18

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2014-03-13 12:52:43 +01:00
Denys Vlasenko
5680e98451 ash: in bash compat mode, always export $SHLVL 
function                                             old     new   delta
ash_main                                            1437    1442      +5

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2014-01-07 16:12:48 +01:00
Denys Vlasenko
8bd810bd27 hush: typo fixes in comments 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-11-28 01:50:01 +01:00
Bernhard Reutner-Fischer
80f8cdf04a ash: Set SHLVL in ASH_BASH_COMPAT 
function                                             old     new   delta
ash_main                                            1456    1505     +49
.rodata                                           148488  148494      +6
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 55/0)               Total: 55 bytes

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
 2013-11-08 14:30:20 +01:00
Bernhard Reutner-Fischer
200c1c46f4 ash: Use setvar2 some more 
(add/remove: 0/0 grow/shrink: 10/15 up/down: 13/-27)          Total: -14 bytes

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
 2013-11-08 14:12:13 +01:00
Denys Vlasenko
25ce3ee9f3 typo fix in comment 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-07-14 01:23:06 +02:00
Denys Vlasenko
e95738f635 typo fix in comment 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-07-08 03:13:08 +02:00
Denys Vlasenko
2301d127a2 unicode: check $LC_CTYPE too to detect Unicode mode 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-07-05 22:00:57 +02:00
Denys Vlasenko
3e7ecb179b unicode: check $LC_ALL to detect Unicode mode, not only $LANG 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-07-02 17:30:23 +02:00
Denys Vlasenko
ff463a885d hush: fix build failure if FEATURE_EDITING=y && !HUSH_INTERACTIVE 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-05-12 02:45:23 +02:00
Flemming Madsen
d96ffda62e ash,hush: history builtin 
function                                             old     new   delta
show_history                                           -      39     +39
builtin_history                                        -      16     +16
historycmd                                             -      13     +13
bltins1                                              312     324     +12
builtintab                                           336     344      +8
popstring                                            134     140      +6
hush_main                                           1048    1046      -2
ash_main                                            1398    1396      -2
size_from_HISTFILESIZE                                44      40      -4
------------------------------------------------------------------------------
(add/remove: 3/0 grow/shrink: 3/3 up/down: 94/-8)              Total: 86 bytes

Signed-off-by: Flemming Madsen <busybox@themadsens.dk>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-04-07 18:47:24 +02:00
Denys Vlasenko
3beab83e4f hush: fix for "while false && true; do echo BUG; break; done". closes 6170 
function                                             old     new   delta
run_list                                             959     941     -18

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-04-07 18:16:58 +02:00
Denys Vlasenko
091f831424 ash: add comment about failures in source builtin. No code changes. 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-03-17 14:25:22 +01:00
Denys Vlasenko
88b532d59a hush: source builtin should override $N only if it has args 
function                                             old     new   delta
builtin_source                                       174     184     +10

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-03-17 14:11:04 +01:00
Stefan Hellermann
4ef1439c59 ash: read $HOME/.profile instead of $(pwd)/.profile 
ash --login should read ~/.profile instead of .profile in the current
directory. I noticed it while trying to figure out why /root/.profile
is only read sometimes.

function                                             old     new   delta
ash_main                                            1374    1398     +24

Signed-off-by: Stefan Hellermann <stefan@the2masters.de>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-03-15 02:45:50 +01:00
Stefan Hellermann
aeb717aa5e ash: move code to allow setting $HOME in /etc/profile 
move HISTFILE=$HOME/.ash_history below reading /etc/profile,
so that /etc/profile can set $HOME. HOME can be unset when
directly invoking ash --login from init without going through
getty.

Signed-off-by: Stefan Hellermann <stefan@the2masters.de>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-03-15 02:37:51 +01:00
Denys Vlasenko
1961aea305 move endofname() to libbb 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-02-26 00:36:53 +01:00
Denys Vlasenko
7c4b13e019 ash: revert wrong "fix" for an apparent memory leak. Closes 5822 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-01-17 13:02:27 +01:00
Denys Vlasenko
6830ade6aa whitespace fixes. no code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-01-15 13:58:01 +01:00
Denys Vlasenko
60cb48ca50 whitespace cleanup. no code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2013-01-14 15:57:44 +01:00
Jon Tollefson
4ba6c5d3ba ash: fix a memory leak 
The script which triggers the leak:

while true
  do
    while true
      do
        break;
    done</dev/null
done

Signed-off-by: Jon Tollefson <kniht@linux.vnet.ibm.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-11-13 19:26:53 +01:00
Denys Vlasenko
d527588882 ash: implement export -n 
function                                             old     new   delta
exportcmd                                            129     175     +46

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-10-01 13:41:17 +02:00
Denys Vlasenko
0b4980c252 ash: trivial fixes for compile failures 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-09-25 12:49:29 +02:00
Denys Vlasenko
9e71e3cea5 ash: fix "read -s" + ^C. Closes 5504 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-09-06 13:28:10 +02:00
Michael Tokarev
32f774cd34 *: declare strings with ALIGN1, as appropriate 
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-07-24 15:56:37 +02:00
Denys Vlasenko
566a313a7f ash: add a comment about VEXPORT 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-07-07 21:40:35 +02:00
Mike Frysinger
c5fe9f7b72 include sys/resource.h where needed 
We use functions from sys/resource.h in misc applets, but don't include
the header.  This breaks building with newer glibc versions, so add the
include where needed.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
 2012-07-05 23:19:09 -04:00
Denys Vlasenko
f451b2cfe0 ash: fix a bug in >${varexp} handling. Closes 5282 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-06-09 02:06:57 +02:00
Denys Vlasenko
9d75370238 hush: remove sighandler_t definition hack, platform.h has it too 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-04-26 10:59:01 +02:00
Denys Vlasenko
8cab66730a fix build breakage found by randconfig 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-04-20 14:48:00 +02:00
Denys Vlasenko
0d6bbb0497 hush: remove unused member struct command::is_stopped 
function                                             old     new   delta
builtin_umask                                        133     132      -1
checkjobs                                            551     544      -7
builtin_fg_bg                                        291     267     -24

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-03-27 14:32:48 +02:00
Aaro Koskinen
6e9d047c15 cttyhack: handle multiple consoles found in sysfs 
If multiple consoles are found from the sysfs file, cttyhack fails:

cttyhack: can't open '/dev/tty0 ttyS0': No such file or directory

In such cases take the last one as the kernel will use that one for
/dev/console.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-02-04 21:55:01 +01:00
Denys Vlasenko
7ce209b9d4 shell_builtin_read: set cc[VMIN] to 1; lineedit: don't clear c_cc[VINTR] 
First change fixes "read -n NUM". Apparently poll() won't report
data availability if cc[VMIN] > 1 until there are at least cc[VMIN] bytes.

function                                             old     new   delta
read_line_input                                     3885    3877      -8
shell_builtin_read                                  1097    1087     -10
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-18)             Total: -18 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-01-15 22:58:06 +01:00
Denys Vlasenko
83f103b30e ash: in standalone mode, search in $PATH if /proc/self/exe doesn't exist 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-12-20 06:10:35 +01:00
Denys Vlasenko
cda6ea905d ash: document bash's exit code too. No code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-12-16 00:44:36 +01:00
Denys Vlasenko
2bef526331 ash: add comment about bash's ENOEXEC handling. No code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-12-16 00:25:17 +01:00
Denys Vlasenko
f8a5b792ba cttyhack: move /sys/class/tty/console/active check to the front 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-10-31 16:57:04 +01:00
Alexander Shishkin
156840c249 cttyhack: print detected ctty name when called without parameters 
Sometimes there's a need to figure out the controlling tty from a shell
script, for example, to obtain a line for getty. In this case it's easier
to call cttyhack than trying to repeat some of the cttyhack's logic.

function                                             old     new   delta
cttyhack_main                                        283     327     +44
packed_usage                                       28911   28915      +4

Signed-off-by: Alexander Shishkin <virtuoso@slind.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-10-31 13:18:44 +01:00
Denys Vlasenko
e45af7ad17 lineedit: remove SAVE_HISTORY bit, ->hist_file can be used as indicator 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-09-04 16:15:24 +02:00
Denys Vlasenko
bede215cf1 lineedit: add support for history saving on exit 
Based on the patch by Dennis Groenen <tj.groenen@gmail.com>

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-09-04 16:12:33 +02:00
Denys Vlasenko
4840ae8a06 lineedit: fix atomic replace of history file; hush: fix $HISTFILE handling 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-09-04 15:28:03 +02:00
Kevin Cernekee
4619802a5f cttyhack: trivial spelling/spacing fixes 
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-08-16 23:31:03 +02:00
Kevin Cernekee
816cd16a4c cttyhack: remove the trailing newline when reading console name from sysfs 
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-08-16 23:29:54 +02:00
Denys Vlasenko
b347df9131 randomconfig fixes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-08-09 22:49:15 +02:00
Denys Vlasenko
6e42b89b8d hush: fix remaining known two bugs with IFS expansion. Closes 4027. 
function                                             old     new   delta
expand_vars_to_list                                 1054    1140     +86
parse_stream                                        2425    2479     +54
expand_on_ifs                                        258     310     +52
builtin_umask                                        133     132      -1
done_word                                            820     779     -41
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/2 up/down: 192/-42)           Total: 150 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-08-01 18:16:43 +02:00
Denys Vlasenko
4fb53fb08c hush: partially fix wrong expansion on $IFS (bug 4027). 
In the added testcase, before patch we failed 8 out of 9 tests,
now we fail only 2 (4th and 5th).

function                                             old     new   delta
expand_on_ifs                                        225     258     +33
expand_vars_to_list                                 1038    1054     +16
o_save_ptr_helper                                    115     119      +4
builtin_umask                                        132     133      +1
o_addQstr                                            165     161      -4
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/1 up/down: 54/-4)              Total: 50 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-08-01 14:06:20 +02:00
Kevin Cernekee
43a668b2ee cttyhack: fail gracefully if the device node is missing 
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-07-13 09:30:36 +02:00
Kevin Cernekee
064e99646a cttyhack: check sysfs for the name of the active console 
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-07-13 09:26:58 +02:00
Denys Vlasenko
56a3b82e96 hush: better comment. No code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-06-01 12:47:07 +02:00
Denys Vlasenko
00ae989ee5 hush: fix a corner case of empty "do \n done" structure 
The structure is:

    while cmd; do
    done

bash doesn't accept it at all. We were accepting it but execution
was buggy.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-05-31 17:35:45 +02:00
Denys Vlasenko
29f9b7268a hush: fix misparsing of "... do eval a= ...". Closes 3721 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-05-14 11:27:36 +02:00
Denys Vlasenko
60a9414cad fix "variable 'foo' set but not used" warnings 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-05-13 20:57:01 +02:00
Denys Vlasenko
0806e401d6 hush: install signal handlers with filled sigmask 
function                                             old     new   delta
install_sighandler                                     -      39     +39
hush_main                                           1001    1031     +30
builtin_trap                                         386     392      +6
install_sighandlers                                  121     123      +2
switch_off_special_sigs                               87      86      -1
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 3/1 up/down: 77/-1)              Total: 76 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-05-12 23:06:20 +02:00
Denys Vlasenko
75e77deab1 hush: fixes and small shrink for HUSH_JOB!=y 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-05-12 13:12:47 +02:00
Denys Vlasenko
ebc1ee2e2a hush: remove one sigprocmask from exit path 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-05-12 10:59:18 +02:00
Denys Vlasenko
0c40a731e3 hush: add forgotten {} in multi-statement if. 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-05-12 09:50:12 +02:00
Denys Vlasenko
f58f705c58 hush: fix login shell's signal handling; add -l option so that it's easier to test 
function                                             old     new   delta
hush_main                                            958    1001     +43
install_special_sighandlers                           47      52      +5
packed_usage                                       28752   28741     -11
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 48/-11)             Total: 37 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-05-12 02:10:33 +02:00
Denys Vlasenko
9d6cbafe72 hush: replace signal handling machinery 
With new version of signal handling, read builtin should be less buggy
wrt signals.

function                                             old     new   delta
install_sighandlers                                    -     121    +121
switch_off_special_sigs                                -      84     +84
pick_sighandler                                        -      58     +58
install_special_sighandlers                            -      47     +47
builtin_wait                                         284     319     +35
record_pending_signo                                   -      21     +21
execvp_or_die                                         43      48      +5
file_get                                             290     288      -2
run_list                                            1004     998      -6
static.zero_timespec                                   8       -      -8
sigprocmask_set                                       14       -     -14
sigwaitinfo                                           23       -     -23
record_signal                                         23       -     -23
__GI_sigwaitinfo                                      23       -     -23
sigtimedwait                                          25       -     -25
builtin_trap                                         417     392     -25
__GI_sigtimedwait                                     25       -     -25
hush_main                                           1003     965     -38
check_and_run_traps                                  263     217     -46
__rt_sigtimedwait                                     52       -     -52
reset_traps_to_defaults                              213     126     -87
init_sigmasks                                        198       -    -198
builtin_read                                         536     197    -339
------------------------------------------------------------------------------
(add/remove: 5/10 grow/shrink: 2/7 up/down: 371/-934)        Total: -563 bytes
   text	   data	    bss	    dec	    hex	filename
 903075	    936	  17736	 921747	  e1093	busybox_old
 902547	    936	  17736	 921219	  e0e83	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-05-11 23:56:11 +02:00
Denys Vlasenko
10c0131a8a hush: use SA_RESTARTed signal handlers across read. 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-05-11 11:49:21 +02:00
Denys Vlasenko
bcf1fa80f3 hush: add tests for interrupting read 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-05-09 01:05:33 +02:00
Denys Vlasenko
54e9e1217c hush: code shrink 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-05-09 00:52:15 +02:00
Denys Vlasenko
80542bad2f hush: make read builtin interruptible. 
function                                             old     new   delta
builtin_read                                         185     471    +286
check_and_run_traps                                  200     262     +62
nonblock_immune_read                                  73     119     +46
sigismember                                            -      44     +44
record_signal                                          -      21     +21
sigisemptyset                                          -      16     +16
...
------------------------------------------------------------------------------
(add/remove: 5/0 grow/shrink: 7/5 up/down: 483/-46)           Total: 437 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-05-08 21:23:43 +02:00
Denys Vlasenko
80c5b6893d libbb: nonblock_safe_read->nonblock_immune_read, remove unused param of xmalloc_reads 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-05-08 21:21:10 +02:00
Denys Vlasenko
b8709032a3 hush: fix incorrect PS2 dispaly and trap handling while reading command 
The fix affects only !ENABLE_FEATURE_EDITING configuration

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-05-08 21:20:01 +02:00
Ian Wienand
89b3cbaa97 ash: clear sa_flags always 
Signed-off-by: Ian Wienand <ianw@vmware.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-04-16 20:05:14 +02:00
Denys Vlasenko
e32d05b708 ash,hush: add ulimit -e -r (RLIMIT_NICE, RLIMIT_RTPRIO) 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-04-04 02:12:14 +02:00
Denys Vlasenko
2c4de5b045 ash,hush: optional support for $HISTFILESIZE. 
Based on patch from Alexey Fomenko (ext-alexey.fomenko AT nokia.com)

function                                             old     new   delta
size_from_HISTFILESIZE                                 -      44     +44
hush_main                                            998    1025     +27
ash_main                                            1348    1374     +26
read_line_input                                     3361    3372     +11
new_line_input_t                                      17      24      +7

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-03-31 13:16:52 +02:00
Denys Vlasenko
a439fa93f6 hush: remove outdated comments 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-03-30 19:11:46 +02:00
Denys Vlasenko
cecbc98611 hush: fix source1.tests 
function                                             old     new   delta
parse_and_run_stream                                  95     139     +44
static_get                                            22      25      +3
file_get                                             260     263      +3
builtin_umask                                        133     132      -1
parse_stream                                        2442    2425     -17
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/2 up/down: 50/-18)             Total: 32 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-03-30 18:54:52 +02:00
Denys Vlasenko
c162bcdcd1 hush: document a bug about aborting on sourced file error when non-interactive 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-03-24 05:38:51 +01:00
Denys Vlasenko
3eab24e64a hush: make parse errors in sourced file non-fatal in interactive script 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-03-24 05:25:59 +01:00
Denys Vlasenko
68d5cb5dac hush: fix a case where return in sourced file has no effect 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-03-24 02:50:03 +01:00
Denys Vlasenko
20704f0662 ash,hush: recheck LANG before every line input 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-03-23 17:59:27 +01:00
Denys Vlasenko
6b6af53426 ash/hush: shrink help text 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-03-08 10:24:17 +01:00
Denys Vlasenko
976ec23da5 remove stray empty line 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-03-07 13:12:01 +01:00
Denys Vlasenko
b0b834342f ash/hush: provide help text 
$ ./busybox ash --help
BusyBox v1.19.0.git (2011-03-07 11:25:29 CET) multi-call binary.

Usage: ash [-/+OPTCHARS] [-/+o OPTNAME]... [-c 'SCRIPT' [ARG0 [ARGS]] / SCRIPT_FILE [ARGS]]

Unix shell interpreter

$ ./busybox hush --help
BusyBox v1.19.0.git (2011-03-07 11:25:29 CET) multi-call binary.

Usage: hush [-nx] [-c 'SCRIPT' [ARG0 [ARGS]] / SCRIPT_FILE [ARGS]]

Unix shell interpreter

function                                             old     new   delta
packed_usage                                       28163   28212     +49
setcmd                                                85      78      -7
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 49/-7)              Total: 42 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-03-07 12:34:59 +01:00
Denys Vlasenko
aefe1c260e ash: fix execution of shell scripts without shebang 
We were assuming #!/bin/sh, whereas we had to simply re-enter ash.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-03-07 12:02:40 +01:00
Denys Vlasenko
940c7206c2 convert "do {...} while (1);" -> "while (1) {...}" 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-03-02 04:07:14 +01:00
Denys Vlasenko
bac0a25f72 slightly better wording in comments 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-02-21 03:47:50 +01:00
Denys Vlasenko
b12553faa8 ash: fix ash-signals/signal8 testcase failure 
function                                             old     new   delta
killcmd                                              109     224    +115
kill_main                                            882     910     +28
changepath                                           194     195      +1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 144/0)             Total: 144 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-02-21 03:22:20 +01:00
Denys Vlasenko
7c6f2468cc hush: do not print killer signal's name for SIGPIPE 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-02-14 17:17:10 +01:00
Denys Vlasenko
66c5b12dbf ash: fix TMOUT not restoring tty attributes 
function                                             old     new   delta
pgetc                                                420     500     +80
readtoken1                                          3202    3239     +37
read_line_input                                     3316    3337     +21
udhcpc_main                                         2610    2630     +20
file_get                                             266     272      +6
expandarg                                            958     963      +5
localcmd                                             257     259      +2
addLines                                              85      87      +2
read_line                                             94      95      +1
ed_main                                             2540    2541      +1
timed_out                                              1       -      -1
lineedit_read_key                                    256     255      -1
alrm_sighandler                                       44       -     -44
cmdloop                                              539     434    -105
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 10/2 up/down: 175/-151)          Total: 24 bytes
   text    data     bss     dec     hex filename
 887379     936   17200  905515   dd12b busybox_old
 887411     936   17192  905539   dd143 busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-02-08 05:07:02 +01:00
Denys Vlasenko
8ee2adab21 echo: do not retry on write errors 
function                                             old     new   delta
echo_main                                            297     336     +39
stpcpy                                                 -      22     +22
run_pipe                                            1561    1566      +5
pseudo_exec_argv                                     187     192      +5
hush_exit                                             75      80      +5
------------------------------------------------------------------------------
(add/remove: 3/0 grow/shrink: 4/0 up/down: 98/0)               Total: 76 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-02-07 02:03:51 +01:00
Denys Vlasenko
046341e8bd ash: optional support for $TMOUT variable 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-02-04 17:53:59 +01:00
Denys Vlasenko
8c52f80397 ash: cosmetic cleanups 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-02-04 17:36:21 +01:00
Denys Vlasenko
b7c9fb27cb whitespace fixes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-02-03 00:05:48 +01:00
Denys Vlasenko
b72baeb003 hush: use FEATURE_SH_NOFORK to enable NOFORK trick 
Also expands docs

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-02-02 18:38:57 +01:00
Denys Vlasenko
8d0e0cdadf move utmp.h include to libbb.h 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-01-25 23:21:46 +01:00
Denys Vlasenko
a146319173 hush: improve prompt in nested {}s, remove unused in_str->promptme member 
function                                             old     new   delta
setup_string_in_str                                   29      38      +9
parse_and_run_stream                                  79      88      +9
setup_file_in_str                                     32      39      +7
parse_stream                                        2430    2422      -8
file_get                                             262     235     -27
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/2 up/down: 25/-35)            Total: -10 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-01-18 17:55:04 +01:00
Denys Vlasenko
98c46d10ee hush: fix "cmd & <newline>" problem 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-01-18 17:30:07 +01:00
Denys Vlasenko
b9f2d9f7d9 mass removal of underscores from _BB_DIR_foo and _BB_SUID_foo 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-01-18 13:58:01 +01:00
Denys Vlasenko
642e71a789 hush: fix wrong prompt problem on empty interactive commants 
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
 2011-01-07 15:16:05 +01:00
Denys Vlasenko
6088e138e1 init: simpler handling of leading dash in commands 
function                                             old     new   delta
init_exec                                            233     219     -14

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-12-25 23:58:42 +01:00
Denys Vlasenko
75eb9d20e9 hush: fix FEATURE_CLEAN_UP code (was freeing unallocated memory) 
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
 2010-12-21 21:18:12 +01:00
Denys Vlasenko
0d6a4ecb30 hush: fix build breakage (variable declared in for()) 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-12-18 01:34:49 +01:00
Denys Vlasenko
8da415ef25 add if guards around include <malloc.h> 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-12-05 01:30:14 +01:00
Denys Vlasenko
57542ebe4f hush: move G_x_mode define to the more appropriate place 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-11-28 03:59:30 +01:00