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36f774a0cd
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586 Commits

Author SHA1 Message Date
Denys Vlasenko
36f774a0cd hush: add support for ${var/pattern/repl}, conditional on bash compat 
function                                             old     new   delta
expand_vars_to_list                                 2386    2833    +447
expand_string_to_string                               69     110     +41
parse_dollar                                         681     721     +40
hush_main                                            963     945     -18
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/1 up/down: 528/-18)           Total: 510 bytes

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
 2010-09-05 14:47:58 +02:00
Denys Vlasenko
701e127f7d hush: optimize #[#] and %[%] for speed. size -2 bytes. 
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
 2010-09-04 21:21:07 +02:00
Denys Vlasenko
e298ce69ba hush: fix handling of backslashes in variable assignment 
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
 2010-09-04 19:52:44 +02:00
Denys Vlasenko
0ef64bdb40 *: make GNU licensing statement forms more regular 
This change retains "or later" state! No licensing _changes_ here,
only form is adjusted (article, space between "GPL" and "v2" and so on).

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-08-16 20:14:46 +02:00
Denys Vlasenko
7783248eaa *: s/xatoi_u/xatoi_positive/g - I got bored of mistyping xatoi_u as xatou_i 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-08-12 14:14:45 +02:00
Denys Vlasenko
f3ea792bad *: mass cosmetic removal of extra empty lines. no code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-07-26 01:06:14 +02:00
Alexander Shishkin
ccb9771861 ash: fix $! value when traps are set 
Signed-off-by: Alexander Shishkin <virtuoso@slind.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-07-25 13:07:39 +02:00
Denys Vlasenko
6adf2aad38 hush: move msh/lash config into hush.c, no code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-07-16 19:26:38 +02:00
Denys Vlasenko
771f1995a9 ash: move config stuff into ash.c, no code chages 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-07-16 14:31:34 +02:00
Denys Vlasenko
29082231d0 hush: fix multimple dependent variable expansion cases 
function                                             old     new   delta
get_local_var_value                                  100     171     +71
expand_assignments                                    46      76     +30
reset_traps_to_defaults                              229     238      +9
maybe_set_to_sigexit                                  47      50      +3
init_sigmasks                                        211     214      +3
builtin_trap                                         462     465      +3
expand_vars_to_list                                 2412    2408      -4
run_pipe                                            1568    1533     -35
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 6/2 up/down: 119/-39)            Total: 80 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-07-16 13:52:32 +02:00
Denys Vlasenko
202a2d1219 hush: make set -x support optional 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-07-16 12:36:14 +02:00
Denys Vlasenko
3f5fae0772 hush: add support for set -x 
function                                             old     new   delta
run_pipe                                            1442    1568    +126
dump_cmd_in_x_mode                                     -     126    +126
builtin_trap                                         441     462     +21
pseudo_exec_argv                                     171     187     +16
reset_traps_to_defaults                              214     229     +15
check_and_run_traps                                  227     232      +5
hush_exit                                             98     101      +3
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 6/0 up/down: 312/0)             Total: 312 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-07-16 12:35:35 +02:00
Denys Vlasenko
b3389de04b hush: fix typo in comment 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-07-15 12:33:37 +02:00
Denys Vlasenko
8fa1f5d543 hush: fix faloout from previous commit 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-07-15 08:18:46 +02:00
Denys Vlasenko
889550b36b hush: make pun_pipe loop clearer; fix "cmd | var=cmd | cmd" handling 
function                                             old     new   delta
free_strings                                           -      38     +38
pseudo_exec_argv                                     161     171     +10
free_pipe                                            227     205     -22
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/1 up/down: 48/-22)             Total: 26 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-07-14 19:01:25 +02:00
Denys Vlasenko
9297dbc9d2 randomconfig fixes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-07-05 21:37:12 +02:00
Pascal Bellard
926031b764 *: introduce and use xfork() and xvfork() 
function                                             old     new   delta
launch_helper                                        170     169      -1
setup_heredoc                                        312     302     -10
handle_dir_common                                    367     354     -13
expand_vars_to_list                                 2456    2443     -13
open_transformer                                      89      74     -15
data_extract_to_command                              439     423     -16
do_ipaddr                                           1406    1389     -17
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/7 up/down: 0/-85)             Total: -85 bytes

Signed-off-by: Pascal Bellard <pascal.bellard@ads-lu.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-07-04 15:32:38 +02:00
Denys Vlasenko
1fcbff2fac build system: do not rebuild ash and hush on any change to any .c file 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-06-26 02:40:08 +02:00
Dan Fandrich
fdd7b566ec A few minor portability improvements 
Signed-off-by: Dan Fandrich <dan@coneharvesters.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-06-19 20:03:15 +02:00
Denys Vlasenko
729ecb87bf bbconfig: make it independent from printf functions 
function                                             old     new   delta
full_write2_str                                        -      25     +25
full_write1_str                                        -      25     +25
clear_main                                            21      20      -1
telnet_main                                         1488    1477     -11
getty_main                                          1932    1918     -14
full_write22_str                                      25       -     -25
------------------------------------------------------------------------------
(add/remove: 2/1 grow/shrink: 0/3 up/down: 50/-51)             Total: -1 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-06-07 14:14:26 +02:00
Denys Vlasenko
599ae1eb9f shell: consolidate builtin_foo.? into shell_common.?; delete obsolete shells 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-23 17:49:50 +02:00
Denys Vlasenko
8391c4800c hush: trivial code shrink 
function                                             old     new   delta
static_get                                            26      22      -4

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-22 17:50:43 +02:00
Denys Vlasenko
2e48d536ce hush: reduce #ifdef forest a bit, rename handle_dollar -> parse_dollar 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-22 17:30:39 +02:00
Denys Vlasenko
5ae8f1cdbe hush: fix hush -c 'echo $0' - was showing empty string 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-22 06:32:11 +02:00
Denys Vlasenko
e85248afa2 hush: fix segfault in ${?:N:M} 
function                                             old     new   delta
expand_vars_to_list                                 2374    2409     +35
builtin_umask                                        132     133      +1
builtin_exit                                          47      48      +1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 37/0)               Total: 37 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-22 06:20:26 +02:00
Denys Vlasenko
8a33679694 hush: fix "hush -c 'echo $#'" showing -1 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-22 06:05:02 +02:00
Denys Vlasenko
1e811b1231 hush: support ${var:EXPR:EXPR}! 
function                                             old     new   delta
handle_dollar                                        574     681    +107
expand_and_evaluate_arith                              -      77     +77
expand_vars_to_list                                 2302    2374     +72
add_till_closing_bracket                             359     368      +9
builtin_exit                                          48      47      -1
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 3/1 up/down: 265/-1)            Total: 264 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-22 03:12:29 +02:00
Denys Vlasenko
ddc62f64ba hush: fix a nommu todo in recent commits 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-22 00:53:32 +02:00
Denys Vlasenko
a6ad397ea9 hush: fix more obscure ${var%...} cases 
function                                             old     new   delta
add_till_closing_paren                               313     359     +46
builtin_exit                                          48      47      -1

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-22 00:26:06 +02:00
Denys Vlasenko
7436950a75 hush: fix a=abc; c=c; echo ${a%${c}} 
function                                             old     new   delta
expand_vars_to_list                                 2229    2302     +73
add_till_closing_paren                               286     313     +27
handle_dollar                                        623     574     -49
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 100/-49)            Total: 51 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-21 19:52:01 +02:00
Denys Vlasenko
3f78cec347 hush: handle expansions in ${var?expanded_word} constructs 
function                                             old     new   delta
expand_vars_to_list                                 2209    2229     +20

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-21 17:54:46 +02:00
Denys Vlasenko
349ef96bb5 hush: reorganized TODO comment at top 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-21 15:46:24 +02:00
Denys Vlasenko
214b8ca3dc hush: add a list of unsupported builtins 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-21 15:35:44 +02:00
Denys Vlasenko
73e013fca7 hush: handle ${var:NUM:} too 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-21 15:24:12 +02:00
Denys Vlasenko
4f2c59b267 hush: remove extra comparison from prev commit 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-21 01:25:16 +02:00
Denys Vlasenko
4d8e5fdc1d hush: optional support for ${var:N:M} bashism 
function                                             old     new   delta
expand_vars_to_list                                 1999    2183    +184
handle_dollar                                        682     623     -59

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-21 01:15:42 +02:00
Denys Vlasenko
53b513331a hush: explain various parameter expansion ops in comments 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-20 21:46:45 +02:00
Denys Vlasenko
ee0775dd13 hush: small code shrink 
function                                             old     new   delta
expand_vars_to_list                                 2012    1999     -13

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-20 16:37:53 +02:00
Denys Vlasenko
e3be7842be hush: shrink variable expansion code 
function                                             old     new   delta
expand_vars_to_list                                 2164    2012    -152

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-20 16:27:42 +02:00
Denys Vlasenko
cddbb610cb hush: fix var=exit 2 not setting $? to 2 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-20 14:27:09 +02:00
Denys Vlasenko
44c86ce5d7 hush: code shrink 
text    data     bss     dec     hex filename
 843121     453    6828  850402   cf9e2 busybox_old
 843108     453    6828  850389   cf9d5 busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-20 04:22:55 +02:00
Denys Vlasenko
b131ccec9c hush: support "cd -- DIR" and such 
function                                             old     new   delta
skip_dash_dash                                         -      33     +33
builtin_exit                                          43      48      +5
builtin_umask                                        121     125      +4
builtin_shift                                        115     119      +4
builtin_cd                                            71      75      +4
builtin_wait                                         271     274      +3
builtin_source                                       171     174      +3
builtin_exec                                          57      60      +3
builtin_eval                                          46      45      -1
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 7/1 up/down: 59/-1)              Total: 58 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-20 03:39:43 +02:00
Denys Vlasenko
e66cf821cf ash,hush: make bare "." set exitcode to 2 
function                                             old     new   delta
dotcmd                                               300     305      +5
builtin_source                                       176     171      -5

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-18 09:12:53 +02:00
Denys Vlasenko
adc0e20892 hush: update bash compat todo comment 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-17 18:56:58 +02:00
Denys Vlasenko
82731b4b7a ash,hush: make "source" a synonym for . if bash compat is on 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-17 17:49:52 +02:00
Denys Vlasenko
3227d3f982 hush: fix hush-bugs/parse_err.tests 
function                                             old     new   delta
parse_stream                                        2325    2339     +14
builtin_umask                                        121     123      +2
builtin_type                                         116     114      -2

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-17 09:49:47 +02:00
Denys Vlasenko
8806d64acd hush: mention PPID, RANDOM support 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-16 02:36:18 +02:00
Denys Vlasenko
651a2697f7 *: merge some common strings 
text   data    bss    dec    hexfilename
 838650   8009      0 846659  ceb43busybox_old
 838519   8009      0 846528  ceac0busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-03-23 16:25:17 +01:00
Denys Vlasenko
1497484839 ash,hush: make it possible to build them individually 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-03-23 01:08:26 +01:00
Denys Vlasenko
f3c742f925 hush: use ash's ulimit builtin; make it more more bash0like while at it 
Based on a patch by Tobias Klauser <tklauser@distanz.ch>

function                                             old     new   delta
shell_builtin_ulimit                                   -     498    +498
limits_tbl                                            33      88     +55
ulimit_opt_string                                      -      38     +38
bltins1                                              288     300     +12
limits_name                                          127       -    -127
ulimitcmd                                            415       7    -408
------------------------------------------------------------------------------
(add/remove: 3/1 grow/shrink: 2/1 up/down: 603/-535)           Total: 68 bytes
   text    data     bss     dec     hex filename
 839229     453    6828  846510   ceaae busybox_old
 839423     453    6828  846704   ceb70 busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-03-06 20:12:00 +01:00