Commit Graph

703 Commits

Author SHA1 Message Date
Denys Vlasenko
20b3d144e9 hush: add support for $RANDOM. If on:
function                                             old     new   delta
hush_main                                            983    1024     +41
get_local_var_value                                   72     104     +32
block_signals                                        155     161      +6
reset_traps_to_defaults                              211     214      +3
builtin_wait                                         268     271      +3
pseudo_exec_argv                                     198     200      +2
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 6/0 up/down: 87/0)               Total: 87 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-10-09 20:59:39 +02:00
Denys Vlasenko
dea478855f hush: support $PPID
function                                             old     new   delta
get_local_var_value                                   33      72     +39
hush_main                                            951     983     +32
block_signals                                        152     155      +3
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 74/0)               Total: 74 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-10-09 15:40:49 +02:00
Denys Vlasenko
a7bb3c1396 *: code shrink via NOINLINE
function                                             old     new   delta
expand_vars_to_list                                    -    2118   +2118
lzo1x_optimize                                         -    1429   +1429
run_pipe                                             358    1775   +1417
arith_apply                                            -    1335   +1335
mainQSort3                                             -    1198   +1198
logdir_open                                            -    1163   +1163
rewrite                                                -    1039   +1039
dump_identity                                          -     987    +987
do_shm                                                 -     884    +884
cpio_o                                                 -     863    +863
cpio_main                                           1450     560    -890
ipcs_main                                           3442    2523    -919
bb_dump_dump                                        2611    1488   -1123
process_dev                                         4572    3405   -1167
logdirs_reopen                                      1308      86   -1222
arith                                               2084     707   -1377
mainSort                                            2622    1202   -1420
do_lzo_compress                                     2276     799   -1477
run_list                                            2491     943   -1548
expand_variables                                    2280     135   -2145
------------------------------------------------------------------------------
(add/remove: 9/0 grow/shrink: 1/10 up/down: 12433/-13288)    Total: -855 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-10-08 12:28:08 +02:00
Denys Vlasenko
c34c033c42 ash,hush: share string
function                                             old     new   delta
optschanged                                          133     139      +6
hush_main                                            997     982     -15
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 6/-15)              Total: -9 bytes
   text   data    bss    dec    hexfilename
 823160    445   7668 831273  caf29busybox_old
 823102    445   7668 831215  caeefbusybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-09-29 12:25:30 +02:00
Denys Vlasenko
e74aaf9385 ash,hush: make trap output short signal names, without SIG prefix
function                                             old     new   delta
evalvar                                             1373    1371      -2
builtin_trap                                         457     441     -16
trapcmd                                              260     236     -24

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-09-27 02:05:45 +02:00
Denys Vlasenko
67f7186403 hush: do not reset to default "" traps in subshell
function                                             old     new   delta
reset_traps_to_defaults                              164     211     +47
builtin_umask                                        123     121      -2

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-09-25 14:21:06 +02:00
Denys Vlasenko
4ea0ca8193 hush: document a TODO. no code changes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-09-25 12:58:37 +02:00
Denys Vlasenko
7188540257 hush: small speed optimization. +10 bytes.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-09-24 01:44:13 +02:00
Denys Vlasenko
2f7894b1bb ash,hush: fix trap reporting: s/SIGEXIT/EXIT/
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-09-24 01:43:21 +02:00
Denys Vlasenko
606291beab *: more portability fixes by Dan Fandrich
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-09-23 23:15:43 +02:00
Denys Vlasenko
91836baf85 hush: fix trap
function                                             old     new   delta
expand_variables                                    2217    2280     +63
static.argv                                            -       8      +8

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-09-23 01:46:19 +02:00
Denys Vlasenko
69b1cef921 hush: better wording in comments. no code changes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-09-21 10:21:44 +02:00
Denys Vlasenko
27726cb6aa hush: make memleak debugging more robust
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-09-12 14:48:33 +02:00
Denys Vlasenko
873273da94 hush: code shrink by Dan Fandrich (dan AT coneharvesters.com)
function                                             old     new   delta
find_function_slot                                     -      47     +47
run_list                                            2508    2491     -17
find_function                                         40       8     -32
builtin_unset                                        227     165     -62

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-09-12 14:47:41 +02:00
Denys Vlasenko
90a9904e9e remove some GNUisms. by Dan Fandrich (dan AT coneharvesters.com)
function                                             old     new   delta
logdirs_reopen                                      1310    1308      -2
read_line_input                                     4757    4753      -4
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-6)               Total: -6 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-09-06 02:36:23 +02:00
Denys Vlasenko
6db4784d27 hush: export PWD
function                                             old     new   delta
set_pwd_var                                            -      36     +36
hush_main                                            941     951     +10
evalvar                                             1365    1363      -2
ash_main                                            1364    1362      -2
builtin_cd                                            75      72      -3
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/3 up/down: 46/-7)              Total: 39 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-09-05 20:15:17 +02:00
Denys Vlasenko
1cc4b13917 msh: aliased to hush
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-08-21 00:05:51 +02:00
Denys Vlasenko
0793491ff8 hush: enable "lash is deprecated, please use hush instead" message
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-08-20 03:40:04 +02:00
Denys Vlasenko
a67a9627d0 hush: do not process options after non-option args
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-08-20 03:38:58 +02:00
Denys Vlasenko
cbfe6ad4c6 hush: fix \<newline> handling on NOMMU
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-08-12 19:47:44 +02:00
Denys Vlasenko
19679784c0 hush tests: remove the requirement that .config is in ../..
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-08-12 14:53:44 +02:00
Denys Vlasenko
9038d6f8f5 remove trailing whitespace
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-07-15 20:02:19 +02:00
Denys Vlasenko
82a6fb3ea6 ash: fix . builtin
Also, move [[ ]] comment to test.c and expand it

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-06-14 19:42:12 +02:00
Denys Vlasenko
77539190ab added comments about [[ ]] to ash and hush. no code changes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-06-10 14:09:48 +02:00
Denys Vlasenko
9ca656b149 hush: add HUSH_BASH_COMPAT, make [[ special handling depend on it
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-06-10 13:39:35 +02:00
Denys Vlasenko
9d617c44d2 hush: specially handle [[ - suppress globbing & multiword expansion
It's a bashism, but is surprisingly easy to do and costs very little code.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-06-09 18:40:52 +02:00
Denys Vlasenko
764b2f0ec0 hush: drop REDIRECT_INVALID; other minor tweaks
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-06-07 16:05:04 +02:00
Denys Vlasenko
df5131cf3d hush: fix a segfault in export builtin
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-06-07 16:04:17 +02:00
Denys Vlasenko
d6b05eb9c2 hush: make builtins work in pipes (eval ... | ...) on NOMMU
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-06-06 20:59:55 +02:00
Denys Vlasenko
d5f1b1bbe0 *: add FAST_FUNC to function ptrs where it makes sense
function                                             old     new   delta
evalcommand                                         1195    1209     +14
testcmd                                                -      10     +10
printfcmd                                              -      10     +10
echocmd                                                -      10     +10
func_exec                                            270     276      +6
echo_dg                                              104     109      +5
store_nlmsg                                           85      89      +4
pseudo_exec_argv                                     195     198      +3
dotcmd                                               287     290      +3
machtime_stream                                       29      31      +2
discard_stream                                        24      26      +2
argstr                                              1299    1301      +2
killcmd                                              108     109      +1
evalfor                                              226     227      +1
daytime_stream                                        43      44      +1
run_list                                            2544    2543      -1
lookupvar                                             62      61      -1
ipaddr_modify                                       1310    1309      -1
...
parse_stream                                        2254    2245      -9
evalpipe                                             356     347      -9
collect_if                                           210     197     -13
read_opt                                             869     851     -18
handle_dollar                                        681     658     -23
print_addrinfo                                      1342    1303     -39
iterate_on_dir                                       156      59     -97
print_route                                         1709    1609    -100
------------------------------------------------------------------------------
(add/remove: 3/0 grow/shrink: 12/130 up/down: 74/-767)       Total: -693 bytes
   text    data     bss     dec     hex filename
 841748     467    7872  850087   cf8a7 busybox_old
 841061     467    7872  849400   cf5f8 busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-06-05 12:06:05 +02:00
Denys Vlasenko
0821801349 hush: document a TODO in export builtin
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-06-03 14:43:56 +02:00
Denys Vlasenko
6f22624a91 hush: fix a case when backgrounded cmd makes shell hang
Signed-off-by: Bayram Kurumahmut <kbayram@ubicom.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-06-03 14:37:30 +02:00
Denys Vlasenko
295fef80bc hush: add support for local builtin
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-06-03 12:47:26 +02:00
Mike Frysinger
6a46ab8b8f hush: unify syntax_error_unterm_{ch,str} a bit
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-01 14:16:43 -04:00
Mike Frysinger
ef3e7fdd3b hush: push down expansion var in handle_dollar()
Declare the variable in the scope it is used rather than the entire
function scope so it's obvious it is only used there.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-01 14:16:43 -04:00
Mike Frysinger
dc3bc40578 hush: add support for special vars in braces
Some people like to use ${?} rather than $?, so make sure we support all
the special single char vars that use this form.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-01 14:16:43 -04:00
Denys Vlasenko
28a105d867 nc, hush: cosmetic cleanups, no code changes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-06-01 11:26:30 +02:00
Denys Vlasenko
4b7db4f2ca read_key: drop optimization where we read 3 bytes at once
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-05-29 10:39:06 +02:00
Denys Vlasenko
171932d7ca hust: trivial simplification in builtin_type
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-05-28 17:07:22 +02:00
Denys Vlasenko
e640cb4ad1 hush: fix bug 353 (wrong handling of \x in assignments)
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-05-28 16:49:11 +02:00
Denys Vlasenko
5d7cca2090 hush: optimize type builtin a bit more
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-05-28 09:58:43 +02:00
Denys Vlasenko
dd6b211921 hush: optimize type builtin a bit
function                                             old     new   delta
builtin_type                                         130     125      -5

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-05-28 09:45:50 +02:00
Mike Frysinger
93cadc2fdd hush: implement type
Implement support for the POSIX `type` command.  Only POSIX stuff is
supported here, no bash extensions like -p or -P.

In the process, split the $PATH searching code out of builtin_source() and
into its own find_in_path() function so we don't duplicate it.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-05-27 17:06:25 -04:00
Denys Vlasenko
673e945052 hush: remove outdated TODO and superfluous macro; fix compile breakage
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-05-27 14:39:35 +02:00
Denys Vlasenko
68759edb6e hush: tweak comment
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-05-26 14:39:41 +02:00
Denys Vlasenko
e2df5f46d0 hush: rename last_waitpid_was_0 to we_have_children
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-05-26 14:34:10 +02:00
Denys Vlasenko
8d7be232a3 hush: fix SIGCHLD counting code, but keep it disabled for now.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-05-25 16:38:32 +02:00
Denys Vlasenko
e9bda90e54 hush: fix problems with case in subshells and with "case esac"
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-05-23 16:50:07 +02:00
Mike Frysinger
38478a600f hush: fix build failure when jobs are disabled
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Reported-by: Thomas Chou <thomas@wytron.com.tw>
2009-05-20 04:48:06 -04:00
root
6245202e7f hush: small fix for unset -f on NOMMU.
Signed-off-by: root <root@localhost.localdomain>
2009-05-04 12:00:19 +02:00
Denys Vlasenko
acdc49c073 hush: add more complex case to leak testcase, fix found breakage
function                                             old     new   delta
unset_local_var_len                                    -     167    +167
run_list                                            2350    2457    +107
set_vars_and_save_old                                  -      87     +87
free_pipe                                            207     227     +20
builtin_unset                                        220     229      +9
builtin_exit                                          49      47      -2
free_strings_and_unset                                53       -     -53
set_vars_all_and_save_old                             87       -     -87
unset_local_var                                      168       -    -168
------------------------------------------------------------------------------
(add/remove: 2/3 grow/shrink: 3/1 up/down: 390/-310)           Total: 80 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-05-04 01:58:10 +02:00
Denys Vlasenko
cb6ff25afe hush: fix bug where in "var=val func" var's value is not visible in func
function                                             old     new   delta
unset_local_var                                        -     168    +168
set_vars_all_and_save_old                              -      87     +87
get_ptr_to_local_var                                   -      77     +77
free_strings_and_unset                                 -      53     +53
builtin_export                                       266     274      +8
get_local_var_value                                   31      33      +2
putenv_all                                            27       -     -27
free_strings_and_unsetenv                             53       -     -53
get_local_var                                         68       -     -68
run_list                                            2475    2350    -125
builtin_unset                                        380     220    -160
------------------------------------------------------------------------------
(add/remove: 4/3 grow/shrink: 2/2 up/down: 395/-433)          Total: -38 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-05-04 00:14:30 +02:00
Denys Vlasenko
e19e1935a3 hush: fix \<newline> handling
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-05-03 02:15:18 +02:00
Denys Vlasenko
b1cfc45376 hush: fix handling of unterminated subshell: (<eof>. Fixes bug 229.
function                                             old     new   delta
syntax_error_unexpected_ch                            31      41     +10
parse_stream                                        2184    2191      +7

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-05-02 17:18:34 +02:00
Denys Vlasenko
1dd6cf8677 hush: fix multiple redirections of the same fd (bug 227)
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-05-02 14:17:31 +02:00
Denys Vlasenko
54e0843e7d hush: make . cmd search $PATH
function         old     new   delta
builtin_source   128     249    +121

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-05-02 02:34:19 +02:00
Denys Vlasenko
690ad2426e git commit test
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-04-30 21:24:24 +02:00
Denis Vlasenko
c8653f62f2 hush: make it possible to have interactive shell on non-ctty.
init=/bin/hush: shows prompt, history works, etc.

function                                             old     new   delta
hush_main                                            888     925     +37
block_signals                                        139     152     +13
builtin_fg_bg                                        284     293      +9
checkjobs_and_fg_shell                                35      41      +6
sigexit                                               65      66      +1
reset_traps_to_defaults                              165     164      -1
parse_stream                                        2200    2184     -16
run_list                                            2502    2475     -27
getpgid                                               35       -     -35
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 5/3 up/down: 66/-79)            Total: -13 bytes
2009-04-27 23:29:14 +00:00
Denis Vlasenko
28e67966f3 hush: make getopt32 usable in builtins. use it in unset.
more uses are expected in the future.

function                                             old     new   delta
getopt32                                            1356    1393     +37
builtin_export                                       256     266     +10
builtin_unset                                        418     380     -38
2009-04-26 23:22:40 +00:00
Denis Vlasenko
572930027d hush: nommu fix for function passing 2009-04-26 20:06:14 +00:00
Denis Vlasenko
5b7589eb27 hush: fix SEGV in % expansion
function                                             old     new   delta
expand_variables                                    2203    2217     +14
2009-04-26 11:25:19 +00:00
Mike Frysinger
26cf2831d7 do not tell people they can enter "help" if help has actually been disabled 2009-04-24 06:40:30 +00:00
Mike Frysinger
67c1c7b456 use get_local_var_value() rather than getenv() when working with PS1/PS2/HOME, respect the PS2 env var, and make sure that the prompt changes whenever PS1/PS2 changes so we dont have to re-exec the shell to get a changed prompt 2009-04-24 06:26:18 +00:00
Denis Vlasenko
f9d4fc3cf8 switch_root: improve behavior on error; improve help text
*: make "can't execute '%s'" message uniform
2009-04-21 20:40:51 +00:00
Denis Vlasenko
950bd72966 hush: speed up set_local_var
function                                             old     new   delta
set_local_var                                        265     290     +25
2009-04-21 11:23:56 +00:00
Denis Vlasenko
5e34ff29bc *: mass renaming of USE_XXXX to IF_XXXX
and SKIP_XXXX to IF_NOT_XXXX - the second one was especially
badly named. It was not skipping anything!
2009-04-21 11:09:40 +00:00
Denis Vlasenko
ad4bd0548a hush: export -n support
function                                             old     new   delta
builtin_export                                       206     256     +50
set_local_var                                        248     265     +17
expand_variables                                    2204    2203      -1
2009-04-20 22:04:21 +00:00
Denis Vlasenko
8c64e033c0 hush: fix stdin of backgrounded pipe
function                                             old     new   delta
run_list                                            2450    2502     +52
2009-04-20 00:34:01 +00:00
Denis Vlasenko
dcd78c4d0f hush: fix "export not_yet_defined_var", fix parsing of "cmd | }"
corner case; improve hush_leaktool.sh;
 fix some false positives in testsuite

function                                             old     new   delta
builtin_export                                       191     206     +15
parse_stream                                        2196    2200      +4
2009-04-19 23:07:51 +00:00
Denis Vlasenko
9f8d938172 same as previous, but -100 bytes 2009-04-19 14:03:11 +00:00
Denis Vlasenko
bf25fbccb9 hush: fix handling of } which is not a closing one in { cmd; }
function                                             old     new   delta
parse_stream                                        2176    2302    +126
builtin_unset                                        381     387      +6
2009-04-19 13:57:51 +00:00
Mike Frysinger
885b6f29ae fix build errors when function support is turned off 2009-04-18 21:04:25 +00:00
Denis Vlasenko
6008d8a3cc hush: fix thinko in error msg 2009-04-18 13:05:10 +00:00
Denis Vlasenko
38e626df4d hush: fix "trap -- handler SIGs..."; escape handlers in "trap" output 2009-04-18 12:58:19 +00:00
Denis Vlasenko
730106767e hush: fix thinko in unset_func 2009-04-18 11:25:18 +00:00
Denis Vlasenko
40e84374ec hush: implement unset -f; beautify the handling of signal-killed pipe
four TODOs are gone

function                                             old     new   delta
builtin_unset                                        271     364     +93
checkjobs                                            394     428     +34
builtin_exit                                          49      47      -2
2009-04-18 11:23:38 +00:00
Denis Vlasenko
eb85849b50 hush: deal with umask TODO (symbolic modes)
function                                             old     new   delta
builtin_umask                                         79     125     +46
2009-04-18 02:06:54 +00:00
Denis Vlasenko
6b9e05392b hush: implement proper SIGHUP handling
function                                             old     new   delta
check_and_run_traps                                  164     229     +65
insert_bg_job                                        376     366     -10
hush_main                                            937     927     -10
2009-04-18 01:23:21 +00:00
Denis Vlasenko
7b9e5c57ae builtin_return's parameter is not unused 2009-04-17 23:53:15 +00:00
Denis Vlasenko
3d40d8e655 hush: return builtin by Bayram Kurumahmut (kbayram AT ubicom.com)
~+200 bytes
2009-04-17 23:44:18 +00:00
Denis Vlasenko
270b1c3f68 hush: set $n properly for "source" builtin
function                                             old     new   delta
restore_G_args                                         -      78     +78
save_and_replace_G_args                                -      64     +64
builtin_source                                        72     107     +35
run_list                                            2549    2367    -182
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 1/1 up/down: 177/-182)           Total: -5 bytes
2009-04-17 18:54:50 +00:00
Denis Vlasenko
4ea187fd62 hush: fix non-interactive response to pipe being stopped.
function                                             old     new   delta
checkjobs                                            380     394     +14
2009-04-17 14:35:43 +00:00
Denis Vlasenko
e4bd4f2cc8 hush: unblock TERM, INT, HUP in child shells too. 2009-04-17 13:52:51 +00:00
Denis Vlasenko
f8c1f02d2f hush: disallow "{echo hi; }" (require whitespace)
and "{ echo hi }" (require semicolon or &)

function                                             old     new   delta
parse_stream                                        2098    2176     +78
done_command                                          98      84     -14
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 78/-14)             Total: 64 bytes
2009-04-17 11:55:42 +00:00
Denis Vlasenko
fa4ca7889e hush: add a TODO 2009-04-16 12:00:15 +00:00
Denis Vlasenko
bb929517a8 hush: fix "if { echo foo; } then { echo bar; } fi" parsing
function                                             old     new   delta
done_word                                            728     793     +65
parse_stream                                        2084    2098     +14
2009-04-16 10:59:40 +00:00
Denis Vlasenko
74a931ac9e hush: stop ignoring ^Z in child shells 2009-04-15 23:29:44 +00:00
Denis Vlasenko
c4ada79343 hush: remove old disabled ^Z handling 2009-04-15 23:29:00 +00:00
Denis Vlasenko
41ddecd9ed hush: fix heredoc_huge.tests broken in last commits 2009-04-15 21:58:14 +00:00
Denis Vlasenko
c376db332c hush: remove TODO comment itself :) 2009-04-15 21:49:48 +00:00
Denis Vlasenko
27014ed5cb hush: deal with a TODO: move argv_from_re_execing out of globals
function                                             old     new   delta
generate_stream_from_string                          156     165      +9
setup_heredoc                                        312     320      +8
re_execute_shell                                     387     391      +4
pseudo_exec_argv                                     129     133      +4
run_pipe                                            1790    1783      -7
clean_up_after_re_execute                             30       -     -30
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 4/1 up/down: 25/-37)            Total: -12 bytes
2009-04-15 21:48:23 +00:00
Denis Vlasenko
7f9593753a randomconfig fixes 2009-04-14 08:06:59 +00:00
Denis Vlasenko
2b2183a77d hush: make function support configurable 2009-04-13 14:23:12 +00:00
Denis Vlasenko
bc56974062 hush: pass functions to child shells on NOMMU
function                                             old     new   delta
new_function                                           -     123    +123
hush_main                                           1198    1262     +64
re_execute_shell                                     341     387     +46
run_pipe                                            1872    1790     -82
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/1 up/down: 233/-82)           Total: 151 bytes
2009-04-12 20:35:19 +00:00
Denis Vlasenko
c43430f1b9 hush: remove functions from TODOs 2009-04-11 11:07:22 +00:00
Denis Vlasenko
0701dca88c hush: improve debugging output 2009-04-11 10:38:47 +00:00
Denis Vlasenko
ed055214bb hush: fix "while...do f1() {a;}; f1; f1 {b;}; f1; done" bug 2009-04-11 10:37:10 +00:00
Denis Vlasenko
ce4acbbab6 hush: add function tests 2009-04-10 23:23:41 +00:00
Denis Vlasenko
6ba6f546ac hush: pass $n to functions
function                                             old     new   delta
run_pipe                                            1183    1325    +142
run_list                                            1219    1220      +1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 143/0)             Total: 143 bytes
2009-04-10 21:57:50 +00:00
Denis Vlasenko
c0ea329297 hush: fix a few thinkos in function support; make it work on NOMMU;
functions in child shells now even have $n passed to them! :)
 (in main shell it still doesn't work)
2009-04-10 21:22:02 +00:00
Denis Vlasenko
b7d8c0dbbd hush: first stab at function support. argv passing is not coded yet.
Only very rudimentary testing was done.
 With function support off, code growth is zero, with it on:

function                                             old     new   delta
run_list                                            2158    2339    +181
parse_stream                                        1929    2044    +115
find_builtin                                          24      67     +43
find_function                                          -      36     +36
file_get                                             244     264     +20
pseudo_exec_argv                                     145     160     +15
free_strings                                           -       7      +7
free_pipe                                            183     181      -2
done_word                                            735     728      -7
expand_variables                                    2227    2204     -23
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 5/3 up/down: 417/-32)           Total: 385 bytes
2009-04-10 19:05:43 +00:00
Denis Vlasenko
835fcfd33d hush: reinstate accidentally reverted comment fix 2009-04-10 13:51:56 +00:00
Denis Vlasenko
0b677d8337 hush: fix some TODOs. TODO in export builting: +250 bytes.
simplify unexpected EOF handling.

function                                             old     new   delta
builtin_export                                       117     374    +257
o_reset_to_empty_unquoted                              -      21     +21
parse_stream                                        1926    1929      +3
syntax_error_unterm_ch                                31      32      +1
handle_dollar                                        644     641      -3
parse_stream_dquoted                                 307     298      -9
add_till_backquote                                   106      97      -9
add_till_closing_paren                               303     286     -17
o_reset                                               21       -     -21
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 3/4 up/down: 282/-59)           Total: 223 bytes
2009-04-10 13:49:10 +00:00
Denis Vlasenko
1fd1ea4395 hush: tighten up "for" variable name check.
Add TODOs.
 Disable redir4.right part where we differ from bash.
 It is not a bug per standards.
 Add a few tests, one is in hush-bugs section:
 and_or_and_backgrounding.right. It will likely bite users
 in real world usage.
2009-04-10 12:03:20 +00:00
Denis Vlasenko
551bdfecb7 hush: fix typo in comment 2009-04-10 11:13:26 +00:00
Denis Vlasenko
ed7823738c fix segfault on syntax error code path 2009-04-10 00:45:02 +00:00
Denis Vlasenko
c96865f445 hush: readability improvements.
fix some more obscure bugs.
 a new redir4.tests is known to fail.
2009-04-10 00:20:58 +00:00
Mike Frysinger
57e746781c dont crash if the variable we do substitution on is not set 2009-04-09 23:00:33 +00:00
Denis Vlasenko
d68ae08cde hush: shrink and make more versatile error-reporting machinery
function                                             old     new   delta
syntax_error_unterm_ch                                 -      31     +31
syntax_error_unterm_str                                -      14     +14
parse_stream                                        2356    2361      +5
syntax_error_at                                       12      14      +2
syntax_error                                          25      27      +2
syntax_error_unterminated                             28       -     -28
expand_variables                                    2063    2031     -32
------------------------------------------------------------------------------
(add/remove: 2/1 grow/shrink: 3/1 up/down: 54/-60)             Total: -6 bytes
   text    data     bss     dec     hex filename
  67278     197    3184   70659   11403 busybox_old
  67228     197    3184   70609   113d1 busybox_unstripped
2009-04-09 20:41:34 +00:00
Denis Vlasenko
05d3b7cc0d hush: deal with some easier TODOs
function                                             old     new   delta
is_well_formed_var_name                                -      87     +87
builtin_read                                          49      86     +37
die_if_script                                          -      31     +31
syntax_error_unterminated                              -      28     +28
syntax_error                                          26      51     +25
done_word                                            768     788     +20
syntax_error_at                                        -      12     +12
parse_stream_dquoted                                 320     328      +8
expand_variables                                    2064    2063      -1
run_list                                            1225    1220      -5
add_till_closing_paren                               308     303      -5
add_till_backquote                                   111     106      -5
handle_dollar                                        812     803      -9
parse_stream                                        2378    2356     -22
parse_redirect                                       408     372     -36
maybe_die                                             44       -     -44
is_assignment                                        215     134     -81
------------------------------------------------------------------------------
(add/remove: 4/1 grow/shrink: 4/8 up/down: 248/-208)           Total: 40 bytes
2009-04-09 19:16:15 +00:00
Denis Vlasenko
1943aec2ec hush: plug the leak of expanded heredoc 2009-04-09 14:15:57 +00:00
Denis Vlasenko
efea9d2819 hush: fix EXIT trap recursion case; check redirection failures
function                                             old     new   delta                          
run_pipe                                            1299    1328     +29                          
hush_exit                                             90     102     +12                          
hush_main                                           1172    1179      +7                          
run_list                                            1226    1225      -1                          
------------------------------------------------------------------------------                    
(add/remove: 0/0 grow/shrink: 3/1 up/down: 48/-1)              Total: 47 bytes
2009-04-09 13:43:11 +00:00
Denis Vlasenko
f50caac53c hush: typo in comment 2009-04-09 01:40:15 +00:00
Denis Vlasenko
a2218dd862 hush: fix thinko in re_execute_shell; pass even less junk to heredoc helper
function                                             old     new   delta
re_execute_shell                                     284     314     +30
setup_heredoc                                        290     303     +13
execv                                                 23       -     -23
2009-04-09 01:39:02 +00:00
Denis Vlasenko
5c090a96f9 hush: more rodust detection of unterminated strings etc;
fix a case where we forget to copy `cmd` text;
 optimize nommu heredoc helper by not passing environment to it;
 add several tests

function                                             old     new   delta
add_till_closing_paren                               256     308     +52
parse_stream                                        2337    2378     +41
add_till_backquote                                    82     111     +29
re_execute_shell                                     269     284     +15
handle_dollar                                        802     812     +10
parse_stream_dquoted                                 316     320      +4
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 6/0 up/down: 151/0)             Total: 151 bytes
2009-04-08 21:51:33 +00:00
Denis Vlasenko
cc90f44402 hush: plug leak in run_pipe(). NOMMU only. 2009-04-08 16:40:34 +00:00
Denis Vlasenko
c73b70c701 hush: add leak detector helper; fix/add tests for it
function                                             old     new   delta
builtin_memleak                                        -      92     +92
bltins                                               288     300     +12
2009-04-08 11:48:57 +00:00
Denis Vlasenko
3dfb035d8d hush: echo \2>file fix 2009-04-08 09:29:14 +00:00
Denis Vlasenko
02d6f1ad72 hush: fix heredoc expansion of $var and cmd
function                                             old     new   delta
expand_pseudo_dquoted                                  -     104    +104
setup_heredoc                                        215     275     +60
done_word                                            669     691     +22
parse_stream                                        1899    1902      +3
setup_redirects                                      196     191      -5
free_pipe                                            189     183      -6
expand_variables                                    2349    2229    -120
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 3/3 up/down: 189/-131)           Total: 58 bytes
2009-04-07 19:56:55 +00:00
Denis Vlasenko
25af86f73d hush: fix wrong comment 2009-04-07 13:29:27 +00:00
Denis Vlasenko
af07b7c5b6 hush: fix heredoc <<- handling.
hush-misc/heredoc2.tests testcase needs only one fix now -
 $var and `cmd` expancsion in heredocs

function                                             old     new   delta
parse_redirect                                       265     306     +41
parse_stream                                        1866    1899     +33
2009-04-07 13:26:18 +00:00
Denis Vlasenko
50f3aa4547 hush: NOMMU-safe support of big heredocs
function                                             old     new   delta
setup_heredoc                                        116     215     +99
2009-04-07 10:52:40 +00:00
Mike Frysinger
d4a24f2aae here documents have been added, so drop from TODO 2009-04-07 07:28:25 +00:00
Mike Frysinger
a4f331d3c3 implement support for parameter substitution via #/% operators 2009-04-07 06:03:22 +00:00
Denis Vlasenko
6c9be7f451 hush: heredoc support, based on patch by Mike Frysinger (vapier AT gentoo.org)
some TODOs are to be attacked later

function                                             old     new   delta
parse_stream                                        1461    1866    +405
parse_redirect                                         -     265    +265
setup_heredoc                                          -     116    +116
setup_redirects                                      151     196     +45
builtin_exit                                          49      47      -2
redirect_opt_num                                      61      55      -6
setup_redirect                                       212       -    -212
------------------------------------------------------------------------------
(add/remove: 2/1 grow/shrink: 2/2 up/down: 831/-220)          Total: 611 bytes
2009-04-07 02:29:51 +00:00
Denis Vlasenko
ab2b064342 hush: s/last_return_code/last_exitcode/g 2009-04-06 18:42:11 +00:00
Denis Vlasenko
0e15138c03 hush: fix "if false; then...fi" exitcode;
trim "keyword"-less hush by 10 bytes
2009-04-06 18:40:31 +00:00
Denis Vlasenko
cd418a2670 hush: fix a bunch of obscure while/until/continue bugs
function                                             old     new   delta
run_list                                            1159    1214     +55
done_pipe                                            106     123     +17
done_command                                          86      98     +12
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 84/0)               Total: 84 bytes
2009-04-06 18:08:35 +00:00
Denis Vlasenko
a2b11e3395 hush: fix "false && echo yes || echo no" bug 265
function                                             old     new   delta
run_list                                            1159    1189     +30
2009-04-06 14:11:13 +00:00
Denis Vlasenko
0969a49c08 hush: beautify re_execute_shell more 2009-04-06 13:05:57 +00:00
Denis Vlasenko
34e573d2ce hush: drop allocations in re_execute_shell
function                                             old     new   delta
hush_main                                           1127    1138     +11
re_execute_shell                                     286     256     -30
clean_up_after_re_execute                             66      30     -36
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/2 up/down: 11/-66)            Total: -55 bytes
2009-04-06 12:56:28 +00:00
Mike Frysinger
dc4178050a fix #>&- syntax for closing fds 2009-04-06 12:35:41 +00:00
Denis Vlasenko
5e883fb00d hush: micro-optimization. -37 bytes 2009-04-06 12:28:34 +00:00
Denis Vlasenko
b1d11bf45e hush: more efficient filtering of "safe" arithmetic
function                                             old     new   delta
expand_variables                                    2170    2147     -23
2009-04-06 12:24:58 +00:00
Denis Vlasenko
d0b4a8c285 hush: add <> and () as "safe" arith chars 2009-04-06 12:09:55 +00:00
Denis Vlasenko
bfbc971f9f hush: print cd error to stderr; use fopen_or_warn in builtin_source;
prepare builtin_unset for function support
libbb: do not clear errno in fopen_or_warn

function                                             old     new   delta
builtin_unset                                        242     271     +29
fopen_or_warn                                         42      31     -11
builtin_cd                                            90      74     -16
builtin_source                                        89      72     -17
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/3 up/down: 29/-44)            Total: -15 bytes
2009-04-06 12:04:42 +00:00
Denis Vlasenko
b0a6478eef hush: fix "export a=a b=b" (was not setting and exporting b)
function                                             old     new   delta
builtin_export                                       103     117     +14
2009-04-06 11:33:07 +00:00
Denis Vlasenko
c8d27334a0 hush: update TODO list; + my usual pointless tweaks :( 2009-04-06 10:47:21 +00:00
Denis Vlasenko
d3f973eab2 hush: mark SIGHUP TODOs better; don't disable SIGHUP for now,
small tweaks to comments
2009-04-06 10:21:42 +00:00
Denis Vlasenko
a0e65120b5 hush: cosmetics, no code changes 2009-04-05 23:39:14 +00:00
Denis Vlasenko
913a201bf0 hush: strip NULs from file input, they are PITA/impossible to handle correctly
function                                             old     new   delta
file_peek                                             89      93      +4
file_get                                             260     264      +4
2009-04-05 22:17:04 +00:00
Mike Frysinger
258275d85f drop HUSH_VER_STR since it has no relevance anymore -- just use BB_VER 2009-04-05 21:19:43 +00:00
Denis Vlasenko
c4a7af55e9 hush: fix trap clearing in subshells on MMU; simplify NOMMU a bit:
function                                             old     new   delta
parse_stream_dquoted                                 335     324     -11
handle_dollar                                        849     800     -49
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-60)             Total: -60 bytes
2009-04-05 20:33:27 +00:00
Denis Vlasenko
f937528571 hush: audit and fix "interactive shell" setup code.
function                                             old     new   delta
block_signals                                          -     139    +139
maybe_set_to_sigexit                                   -      47     +47
run_list                                            2018    2030     +12
expand_variables                                    2155    2165     +10
maybe_set_sighandler                                  47       -     -47
hush_main                                            992     918     -74
------------------------------------------------------------------------------
(add/remove: 2/1 grow/shrink: 2/1 up/down: 208/-121)           Total: 87 bytes
2009-04-05 19:13:39 +00:00
Denis Vlasenko
46f9b6db80 hush: pass $! thru re-execution; try harder on re-exec; give error
msg if re-exec didn't work; other tweaks in main()

function                                             old     new   delta
hush_main                                           1144    1199     +55
re_execute_shell                                     237     286     +49
file_get                                             240     260     +20
clean_up_after_re_execute                             58      66      +8
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/0 up/down: 132/0)             Total: 132 bytes
2009-04-05 10:39:03 +00:00
Denis Vlasenko
232be3e79b hush: suppress bogus warning from 4.2.1 2009-04-05 09:16:00 +00:00
Denis Vlasenko
d85a5df159 hush: randomconfig fixes 2009-04-05 08:43:57 +00:00
Denis Vlasenko
cc4c693ec5 hush: plug the leak on NOMMU re-execute path
function                                             old     new   delta
clean_up_after_re_execute                              -      58     +58
re_execute_shell                                     226     244     +18
run_pipe                                            1271    1276      +5
generate_stream_from_string                          133     138      +5
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 3/0 up/down: 86/0)               Total: 86 bytes
2009-04-05 07:38:48 +00:00
Denis Vlasenko
30db43b5c5 hush: fix passing of $n on NOMMU 2009-04-05 02:10:39 +00:00
Denis Vlasenko
16a0c74f63 hush: fix hush-misc/break5.tests NOMMU failure
function                                             old     new   delta
hush_main                                           1118    1144     +26
re_execute_shell                                     188     204     +16
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 42/0)               Total: 42 bytes
2009-04-05 01:46:59 +00:00
Denis Vlasenko
0bb4a23506 hush: fix all testsuite failures on NOMMU except memory leak.
known TODOs: we do not pass traps and positional args yet.
2009-04-05 01:42:59 +00:00
Denis Vlasenko
609f2ab434 hush: enable NOMMU re-execution logic. Some testsuite entries
fail on NOMMU. Before it was much worse.
 No regressions on MMU, size:

function                                             old     new   delta
handle_dollar                                        626     632      +6
run_list                                            2018    2022      +4
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 10/0)               Total: 10 bytes
2009-04-04 23:15:14 +00:00
Denis Vlasenko
9aa7d6fdc5 hush: preparatory patch for NOMMU-safe { list } handling.
function                                             old     new   delta
o_addblock                                             -      58     +58
o_addstr_with_NUL                                      -      27     +27
builtin_exit                                          47      49      +2
run_list                                            2020    2018      -2
o_addstrauto                                          27       -     -27
parse_stream                                        1508    1461     -47
o_addstr                                              58       -     -58
------------------------------------------------------------------------------
(add/remove: 2/2 grow/shrink: 1/2 up/down: 87/-134)           Total: -47 bytes
2009-04-04 22:47:50 +00:00
Denis Vlasenko
34d4d89b2d hush: fix NOMMU hangs in pseudo_exec_argv. Add forgotted setting
of signal mask. Reuse same help string in all shells.

function                                             old     new   delta
builtin_exit                                          49      47      -2
pseudo_exec_argv                                     149     145      -4
builtin_help                                          74      63     -11
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-17)             Total: -17 bytes
   text    data     bss     dec     hex filename
 825379     476    7616  833471   cb7bf busybox_old
 825341     476    7616  833433   cb799 busybox_unstripped
2009-04-04 20:24:37 +00:00
Denis Vlasenko
552433bc5a hush: fix "var=val >file" not creating file
function                                             old     new   delta
static.null_ptr                                        -       4      +4
run_list                                            2018    2020      +2
handle_dollar                                        667     626     -41
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/1 up/down: 6/-41)             Total: -35 bytes
2009-04-04 19:29:21 +00:00
Denis Vlasenko
a24c8caeb2 hush: remove code which errors out on $- and $_, it's useless;
wrap some longish lines

function                                             old     new   delta
handle_dollar                                        667     626     -41
2009-04-04 15:24:40 +00:00
Denis Vlasenko
7c9861214b hush: remove CHAR_xxx constants 2009-04-04 12:15:42 +00:00
Denis Vlasenko
6da69cddc0 hush: get rid of charmap[]
function                                             old     new   delta
parse_stream                                        1447    1508     +61
get_local_var_value                                    -      31     +31
run_list                                            2018    2020      +2
pseudo_exec_argv                                     151     149      -2
maybe_set_sighandler                                  50      47      -3
hush_exit                                             93      90      -3
builtin_wait                                         275     272      -3
check_and_run_traps                                  169     164      -5
hush_main                                            985     977      -8
file_get                                             260     240     -20
builtin_trap                                         438     414     -24
set_in_charmap                                        30       -     -30
lookup_param                                          31       -     -31
parse_and_run_stream                                 153      54     -99
------------------------------------------------------------------------------
(add/remove: 1/2 grow/shrink: 2/9 up/down: 94/-228)          Total: -134 bytes
2009-04-04 12:12:58 +00:00
Mike Frysinger
dfa9de7176 simplify maybe_die() slightly 2009-04-03 22:48:10 +00:00
Denis Vlasenko
db2a9b683a hush: finally make cmd safe on NOMMU
function                                             old     new   delta
generate_stream_from_string                            -     157    +157
expand_variables                                    2050    2003     -47
generate_stream_from_list                            139       -    -139
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 0/1 up/down: 157/-186)          Total: -29 bytes
2009-04-03 22:31:18 +00:00
Denis Vlasenko
e0755e58ca hush: yet another randomconfig fix 2009-04-03 21:16:45 +00:00
Denis Vlasenko
60b392fd5b hush: randomconfig fixes 2009-04-03 19:14:32 +00:00
Denis Vlasenko
b6e6556b31 hush: improve parse_stream: does not require parsing context struct;
cleans up on syntax errors (we used to leak memory in this case);
 much simplified interface to the rest of hush.

function                                             old     new   delta
parse_stream                                        1204    1447    +243
done_word                                            658     669     +11
static_get                                            22      28      +6
builtin_source                                        84      89      +5
parse_and_run_file                                    27      30      +3
parse_and_run_string                                  31      27      -4
builtin_eval                                          55      50      -5
hush_main                                            991     985      -6
free_pipe_list                                        39      31      -8
free_pipe                                            210     189     -21
expand_variables                                    2242    2199     -43
parse_and_run_stream                                 289     153    -136
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 5/7 up/down: 268/-223)           Total: 45 bytes
2009-04-03 16:49:04 +00:00
Denis Vlasenko
240c255d8b hush: simplify parse_stream
function                                             old     new   delta
parse_and_run_stream                                 292     289      -3
parse_stream                                        1218    1204     -14
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-17)             Total: -17 bytes
2009-04-03 03:45:05 +00:00
Denis Vlasenko
3718168b87 hush: fix bug with local environment vars in pipes; simplify parse_stream()
function                                             old     new   delta
parse_stream                                        1238    1218     -20
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-20)             Total: -20 bytes
2009-04-03 03:19:15 +00:00
Denis Vlasenko
f9f7429346 hush: explain parsing context structure
plug leak in setup_redirect on error path

function                                             old     new   delta
done_command                                          84      86      +2
done_word                                            657     658      +1
done_pipe                                            105     106      +1
initialize_context                                    39      38      -1
setup_redirect                                       219     212      -7
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/2 up/down: 4/-8)               Total: -4 bytes
2009-04-03 00:07:05 +00:00
Denis Vlasenko
027e3fddb5 hush: straighten parse_stream() API a bit
function                                             old     new   delta
parse_stream                                        1240    1238      -2
expand_variables                                    2272    2242     -30
parse_and_run_stream                                 338     292     -46
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-78)             Total: -78 bytes
2009-04-02 22:50:40 +00:00
Denis Vlasenko
b7aaae9052 hush: rename ->o_quote to ->o_escape
hush_test/hush-arith/*: new tests for arithmetic evaluation
2009-04-02 20:17:49 +00:00
Mike Frysinger
7a79afa3ca Arithmetic Expansion is supported now in hush, so drop from TODO 2009-04-02 17:06:35 +00:00
Denis Vlasenko
f328e00b10 hush: do not inadvertently parse $((1 + "22")) as ok.
-20 bytes code size
2009-04-02 16:55:38 +00:00
Denis Vlasenko
2f1d394214 hush: make
a=55; echo $(($a + 1)) $((1 + $((2)) + `echo $a`))
 work as expected

function                                             old     new   delta
handle_dollar                                          -     667    +667
parse_stream_dquoted                                   -     316    +316
expand_variables                                    2124    2272    +148
is_assignment                                        134     215     +81
parse_stream                                        2038    1240    -798
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 2/1 up/down: 1212/-798)         Total: 414 bytes
2009-04-02 16:31:29 +00:00
Denis Vlasenko
b29eb6ed25 shells: do not need to have math state global
function                                             old     new   delta                           
ash_arith                                              -     143    +143                           
expand_variables                                    2102    2124     +22                           
popstring                                            134     140      +6                           
parse_command                                       1460    1463      +3                           
trapcmd                                              236     238      +2                           
changepath                                           197     196      -1                           
raise_interrupt                                       86      83      -3                           
hush_main                                           1012     991     -21                           
ash_main                                            1388    1364     -24                           
arith_set_local_var                                   73      34     -39                           
dash_arith                                           117       -    -117                           
------------------------------------------------------------------------------                     
(add/remove: 1/1 grow/shrink: 4/5 up/down: 176/-205)          Total: -29 bytes
2009-04-02 13:46:27 +00:00
Mike Frysinger
98c52645c0 split math code out of ash and into a standalone library so we can use it in any shell (like hush!) 2009-04-02 10:02:37 +00:00
Denis Vlasenko
7566bae197 hush: fix wait builtin
function                                             old     new   delta
builtin_wait                                         174     275    +101
sigwaitinfo                                            -      48     +48
__GI_sigwaitinfo                                       -      48     +48
check_and_run_traps                                  133     169     +36
checkjobs                                            349     380     +31
hush_main                                            971     991     +20
static.zero_timespec                                   -       8      +8
run_list                                            2010    2016      +6
file_get                                             254     260      +6
static.zero_ts                                         8       -      -8
------------------------------------------------------------------------------
(add/remove: 3/1 grow/shrink: 6/0 up/down: 304/-8)            Total: 296 bytes
2009-03-31 17:24:49 +00:00
Denis Vlasenko
1b62ead313 hush: don't lie in comment 2009-03-31 13:13:17 +00:00
Denis Vlasenko
7b830e78f2 hush: fix comments, no code changes 2009-03-31 13:05:32 +00:00
Denis Vlasenko
422cd7c81c hush: make ^C work again, ^Z probably isn't working
function                                             old     new   delta
file_get                                             219     254     +35
check_and_run_traps                                  122     133     +11
run_list                                            2001    2010      +9
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 55/0)               Total: 55 bytes
2009-03-31 12:41:52 +00:00
Denis Vlasenko
abedaac842 hush: do not reset sighaldlers after fork - instead, prevent them from doing any harm
if they will be called. saves many sigaction calls on every fork.

function                                             old     new   delta
hush_main                                            887     971     +84
sigexit                                               54      65     +11
run_list                                            2006    2001      -5
maybe_set_sighandler                                  76      50     -26
set_fatal_sighandler                                 186       -    -186
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 2/2 up/down: 95/-217)          Total: -122 bytes
2009-03-31 12:03:40 +00:00
Denis Vlasenko
d5762932fb hush: rework signal and trap handling. Some smaller bits are TODO,
expect minor breakage

function                                             old     new   delta
set_fatal_sighandler                                  12     186    +174
check_and_run_traps                                    -     122    +122
maybe_set_sighandler                                   -      76     +76
hush_main                                            831     887     +56
sigtimedwait                                           -      50     +50
__GI_sigtimedwait                                      -      50     +50
hush_exit                                             49      93     +44
set_mode                                             749     777     +28
pseudo_exec_argv                                     131     151     +20
static.zero_ts                                         -       8      +8
expand_variables                                    1962    1970      +8
builtin_wait                                         172     174      +2
set_misc_sighandler                                   12       -     -12
set_jobctrl_sighandler                                12       -     -12
handler_ctrl_c                                        16       -     -16
builtin_set_mode                                      28       -     -28
handle_trap                                           97       -     -97
handler_ctrl_z                                       107       -    -107
builtin_trap                                         545     438    -107
run_list                                            2149    2006    -143
------------------------------------------------------------------------------
(add/remove: 5/6 grow/shrink: 7/2 up/down: 638/-522)          Total: 116 bytes
2009-03-31 11:22:57 +00:00
Mike Frysinger
d690f68554 implement unset semantics as required by POSIX 2009-03-30 06:50:54 +00:00
Mike Frysinger
0080ea7992 update trap poisx link 2009-03-30 03:50:07 +00:00
Mike Frysinger
87824e0e50 do not automatically display job information when the shell is not interactive 2009-03-30 00:19:30 +00:00
Mike Frysinger
9f8128f480 first pass at trap support in hush 2009-03-29 23:49:37 +00:00
Mike Frysinger
40b8dc410e use bb_strtou() in umask/wait and check errno to see if there was a problem rather than using endp 2009-03-29 00:50:30 +00:00
Mike Frysinger
8ec1c9dc6e make sure we check job status whenever updating the prompt 2009-03-29 00:45:26 +00:00
Mike Frysinger
7c3e52c1bd do not let handle_dollar() accept vars that start with a digit 2009-03-28 21:06:22 +00:00
Mike Frysinger
56bdea1b43 implement wait builtin 2009-03-28 20:01:58 +00:00
Denis Vlasenko
701ac1864b randomconfig fix 2009-03-28 19:22:08 +00:00
Mike Frysinger
5a82845f60 update the normally disabled debug code around the syntax() func to use new maybe_die() 2009-03-28 19:09:04 +00:00
Mike Frysinger
6379bb4fde implement most POSIX parameter expansions (~+500bytes) 2009-03-28 18:55:03 +00:00
Mike Frysinger
25a6ca0dd4 split up feature todo by posix/bash 2009-03-28 13:59:26 +00:00
Mike Frysinger
ad88d5a4cf unify set handling with command line processing, fixup set argv processing so it doesnt clobber argv when setting options, and barf on unhandled set options 2009-03-28 13:44:51 +00:00
Mike Frysinger
19a7ea126a handle the "-s" command line option that POSIX requires 2009-03-28 13:02:11 +00:00
Mike Frysinger
a71cfa8aa1 rename "-f" (fake) option to "-n" to match POSIX 2009-03-28 12:57:54 +00:00
Mike Frysinger
d006edb2ca tweak format modifier in debug code to fixup gcc warning 2009-03-28 12:43:53 +00:00
Mike Frysinger
ec2c655702 convert some of the ENABLE_FEATURE_EDITING from CPP if to C if 2009-03-28 12:24:44 +00:00
Mike Frysinger
39456a18a1 stop lying about [[ test support 2009-03-28 12:21:57 +00:00
Mike Frysinger
bfc0fae952 enable most job functions on no-mmu systems 2009-03-26 18:14:16 +00:00
Mike Frysinger
b2705e1652 do not make startup banner depend on job support 2009-03-23 08:44:02 +00:00
Mike Frysinger
ddbee974b4 move parse_stream out of ENABLE_HUSH_TICK to avoid implicit decl/build error 2009-03-22 22:48:41 +00:00
Denis Vlasenko
424f79b48f hush: rearrange functions to reduce amount of forward references.
Minimal code changes.
2009-03-22 14:23:34 +00:00
Denis Vlasenko
e1300f6fc7 hush: fix segv at repeated "set -- a b c" + "shift" 2009-03-22 11:41:18 +00:00
Denis Vlasenko
786ce17d6d hush: fix strcpy of potentially overlapping strings 2009-03-21 21:51:11 +00:00
Denis Vlasenko
a8b6dff97f hush: fix bug 207 and "hush -c" parameter passing.
Now hush -c 'printf "%s\n" "$@"' (prints "\n")
 and hush -c 'printf "%s\n" "$@"' qwe asd (prints "asd\n")
 both work correctly
2009-03-20 12:05:14 +00:00
Denis Vlasenko
11fb7cf5af hush: fix set [--] params. Closes bug 199.
function                                             old     new   delta
builtin_set                                           55     194    +139
add_strings_to_strings                                 -     130    +130
add_string_to_strings                                110      26     -84
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/1 up/down: 269/-84)           Total: 185 bytes
2009-03-20 10:13:08 +00:00
Denis Vlasenko
76ddc2e3e4 libbb: add bb_unsetenv (taken from hush).
udhcpc: stop filtering environment passed to the script.
crond: fix uncovered potential bug (failing unsetenv)
mdev: fix uncovered potential bug (failing unsetenv)
tcp, udpsvd: fix uncovered potential bug (failing unsetenv)

function                                             old     new   delta
safe_setenv                                            -      58     +58
bb_unsetenv                                            -      55     +55
builtin_unset                                        139     138      -1
tcpudpsvd_main                                      1843    1830     -13
free_strings_and_unsetenv                             87      53     -34
udhcp_run_script                                    1186    1133     -53
safe_setenv4                                          62       -     -62
------------------------------------------------------------------------------
(add/remove: 2/1 grow/shrink: 0/4 up/down: 113/-163)          Total: -50 bytes
2008-12-30 05:05:31 +00:00
Denis Vlasenko
61befda93b ash,hush: add TODO for rare build failure
*: remove some redundant includes
2008-11-25 01:36:03 +00:00
Denis Vlasenko
9504e444b8 whitespace fixes, no code changes 2008-10-29 01:19:15 +00:00
Denis Vlasenko
ddc8ae3003 hush: add TODO 2008-10-14 12:50:34 +00:00
Denis Vlasenko
371de4acf7 hush: next small step towards functions 2008-10-14 12:43:13 +00:00
Denis Vlasenko
f886fd2bc7 hush: fix NOMMU bug (analogous to preceding commit for MMU) 2008-10-13 12:36:05 +00:00
Denis Vlasenko
22d10a0292 hush: fix trashing of environment by local env vars:
a=a; a=b cmd; - a was unset!
  +57 bytes

function                                             old     new   delta
add_string_to_strings                                  -     110    +110
putenv_all                                             -      27     +27
run_list                                            2086    2111     +25
free_strings                                           -       7      +7
free_pipe                                            210     208      -2
add_malloced_string_to_strings                       110       -    -110
------------------------------------------------------------------------------
(add/remove: 3/1 grow/shrink: 1/1 up/down: 169/-112)           Total: 57 bytes
2008-10-13 08:53:43 +00:00
Denis Vlasenko
afd7a8d744 hush: fix environment and memory leaks, add tests for them
function                                             old     new   delta
add_malloced_string_to_strings                         -     110    +110
run_list                                            1999    2086     +87
free_strings_and_unsetenv                              -      87     +87
hush_version_str                                       -      18     +18
pseudo_exec_argv                                     139     146      +7
static.version_str                                    17       -     -17
free_pipe                                            237     210     -27
done_word                                            790     642    -148
------------------------------------------------------------------------------
(add/remove: 3/1 grow/shrink: 2/2 up/down: 309/-192)          Total: 117 bytes
2008-10-09 16:29:44 +00:00
Denis Vlasenko
c373527e4f hush: preparatory work for implementing functions 2008-10-09 12:58:26 +00:00
Denis Vlasenko
9af22c7626 hush: massive renaming of ill-named structures and fields
hush: error out on constructs like:
 $ abc(def) - was working as if it was (abcdef)
 $ case b in abc(a|(b) echo YES; esac - was ignoring 'abc' and extra '('
2008-10-09 12:54:58 +00:00
Bernhard Reutner-Fischer
864329d674 - fix compilation on OSF/1 2008-09-25 10:55:05 +00:00
Denis Vlasenko
2b576b8e76 hush: fix mishandling of a'b'c=fff as assignments. They are not.
function                                             old     new   delta
parse_stream                                        1920    2004     +84
done_word                                            715     752     +37
parse_and_run_stream                                 328     333      +5
builtin_exec                                          25      29      +4
pseudo_exec_argv                                     138     139      +1
run_list                                            2006    1999      -7
is_assignment                                        215     134     -81
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 5/2 up/down: 131/-88)            Total: 43 bytes
2008-08-04 00:46:07 +00:00
Denis Vlasenko
c8bec9a085 hush: remove a comment about already fixed bug 2008-08-03 22:27:50 +00:00
Denis Vlasenko
d498131168 hush: support $_NUMBERS variable names 2008-07-31 10:34:48 +00:00
Denis Vlasenko
f173607520 hush: fix "case ... in <newline> word)..." 2008-07-31 10:09:26 +00:00
Denis Vlasenko
fbeeb328b8 hush: support "pattern1|pattern2...)" in case statements
parse_stream                                        1847    1861     +14
run_list                                            1995    2006     +11
2008-07-31 00:17:01 +00:00
Denis Vlasenko
4f504a9e57 hush: trivial code shrink
function                                             old     new   delta
builtin_continue                                      48      22     -26
2008-07-29 19:48:30 +00:00
Denis Vlasenko
87a8655f46 hush: use G.xxx instead of #define xxx G.xxx. We have too many globals
there and #defines get messy. Remove one write-only G.variable.
2008-07-29 19:43:10 +00:00
Denis Vlasenko
ff29b4fc42 randomconfig fix 2008-07-29 13:57:59 +00:00
Denis Vlasenko
4554b721ad hush: small fix for repeated continue and fix for wrong loop depth count
after Ctrl-C; with testcase for first one
2008-07-29 13:36:09 +00:00
Denis Vlasenko
45cb9f9581 hush: fix inverted check (was making all break's to act as "break 99999") 2008-07-29 11:47:46 +00:00
Denis Vlasenko
fcf37c3183 hush: fix break'ing out of {} and () groups; with testcase
function                                             old     new   delta
builtin_break                                         93     129     +36
builtin_continue                                      21      47     +26
run_list                                            1973    1976      +3
2008-07-29 11:37:15 +00:00
Denis Vlasenko
d91afa33fd randomconfig fixes 2008-07-29 11:10:01 +00:00
Denis Vlasenko
dadfb4975b hush: add #defines to switch off break/continue if loops are not supported
*: remove a few inline keywords
no code changes
2008-07-29 10:16:05 +00:00
Denis Vlasenko
918a34b9e0 hush: fix "while false; ..." exitcode; add testsuites 2008-07-28 23:17:31 +00:00
Denis Vlasenko
6a2d40f239 hush: support "break N" and "continue N"
fix non-detection of builtins and applets in "v=break; ...; $v; ..." case
 add testsuite entries for the above

function                                             old     new   delta
builtin_break                                         12      93     +81
run_list                                            1948    1971     +23
builtin_continue                                      12      21      +9
pseudo_exec_argv                                     132     138      +6
builtin_exec                                          23      25      +2
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 5/0 up/down: 121/0)             Total: 121 bytes
2008-07-28 23:07:06 +00:00
Denis Vlasenko
bcb25537d0 hush: implement break and continue
function                                             old     new   delta
bltins                                               252     276     +24
builtin_continue                                       -      12     +12
builtin_break                                          -      12     +12
static.version_str                                    18      17      -1
run_list                                            1984    1948     -36
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 1/2 up/down: 48/-27)             Total: 11 bytes
2008-07-28 23:04:34 +00:00
Denis Vlasenko
cf22c89f9a hush: in run_list(), some loop_top ops seems to be superfluous.
comment them out. Also, use separate temp variable
 for verification loop, helps gcc to optimize better.

function                                             old     new   delta
run_list                                            2039    1984     -55
2008-07-28 15:17:44 +00:00
Denis Vlasenko
12acec5ad4 hush: in run_list(), last_cond_code seems to be superfluous. comment it out
function                                             old     new   delta
run_list                                            2055    2039     -16
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-16)             Total: -16 bytes
2008-07-28 15:15:59 +00:00
Denis Vlasenko
5e052cab17 hush: explain run_list() in detail; small optimizations
function                                             old     new   delta
hush_main                                            785     786      +1
expand_variables                                    1447    1448      +1
builtin_exit                                          48      49      +1
builtin_eval                                          54      55      +1
run_list                                            2075    2055     -20
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/1 up/down: 4/-20)             Total: -16 bytes
2008-07-28 15:15:09 +00:00
Denis Vlasenko
be709c24d4 hush: finish and enable optional case...esac support. Code size cost:
function                                             old     new   delta
run_list                                            1891    2075    +184
parse_stream                                        1764    1847     +83
expand_strvec_to_string                                -      83     +83
done_word                                            647     715     +68
static.reserved_list                                 144     168     +24
static.reserved_match                                  -      12     +12
done_pipe                                             95     105     +10
builtin_exit                                          48      46      -2
builtin_eval                                         127      54     -73
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 5/2 up/down: 464/-75)           Total: 389 bytes
2008-07-28 00:01:16 +00:00
Denis Vlasenko
5415c856ea libbb: [x]fopen_for_{read,write} introduced and used.
(by Valdimir)

function                                             old     new   delta
config_open2                                           -      41     +41
config_read                                          507     542     +35
find_pair                                            169     187     +18
fopen_for_write                                        -      14     +14
fopen_for_read                                         -      14     +14
find_main                                            406     418     +12
xfopen_for_write                                       -      10     +10
xfopen_for_read                                        -      10     +10
popstring                                            134     140      +6
parse_inittab                                        396     401      +5
next_token                                           923     928      +5
pack_gzip                                           1659    1661      +2
bb__parsespent                                       117     119      +2
fallbackSort                                        1719    1717      -2
evalvar                                             1376    1374      -2
qrealloc                                              36      33      -3
...
...
...
...
singlemount                                         4579    4569     -10
process_stdin                                        443     433     -10
patch_main                                          1111    1101     -10
ifupdown_main                                       2175    2165     -10
file_action_grep                                      90      80     -10
uuidcache_init                                       649     637     -12
hush_main                                            797     785     -12
read_config                                          230     217     -13
dpkg_main                                           3835    3820     -15
read_line_input                                     3134    3110     -24
sysctl_main                                          232     203     -29
config_open                                           40      10     -30
WARN_BAD_LINE                                         44       -     -44
login_main                                          1714    1575    -139
------------------------------------------------------------------------------
(add/remove: 5/1 grow/shrink: 8/74 up/down: 174/-737)        Total: -563 bytes
2008-07-21 23:05:26 +00:00
Bernhard Reutner-Fischer
a53de7f7c2 - fix spelling 2008-07-21 13:46:54 +00:00
Denis Vlasenko
757361f9f5 hush: fix "... pattern) cmd;; esac" case 2008-07-14 08:26:47 +00:00
Denis Vlasenko
395ae45216 hush: delete unused field in struct child.
reinstate needed check for invalid syntax.
 document command parsing in hush_doc.txt.
2008-07-14 06:29:38 +00:00
Denis Vlasenko
17f02e79f4 hush: add case statement support. It is incomplete and disabled for now.
costs ~300 bytes when enabled.
2008-07-14 04:32:29 +00:00
Denis Vlasenko
6bdff08e6c hush: compile fixes for !LOOPS case 2008-07-09 20:14:53 +00:00
Denis Vlasenko
733e3fbc2f hush: support "for if in do done then; do echo $if; done" case
function                                             old     new   delta
done_pipe                                             83      95     +12
parse_stream                                        1758    1764      +6
done_word                                            674     647     -27
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 18/-27)             Total: -9 bytes
2008-07-06 10:01:13 +00:00
Denis Vlasenko
ff182a3d68 hush: support "for v; do ... done" syntax (implied 'in "$@"') 2008-07-05 20:29:59 +00:00
Denis Vlasenko
afdcd12ed7 hush: fix a case where "$@" must expand to no word at all 2008-07-05 17:40:04 +00:00
Denis Vlasenko
a60f84ebf0 *: rename ATTRIBUTE_XXX to just XXX. 2008-07-05 09:18:54 +00:00
Denis Vlasenko
82604e9730 revert last two commits. vfork cannot be used in subroutine,
it trashes stack on return
2008-07-01 15:59:42 +00:00
Denis Vlasenko
58d60c3333 *: introduce and use xfork()
function                                             old     new   delta
xfork                                                  -      20     +20
msh_main                                            1377    1380      +3
mod_process                                          455     446      -9
forkexit_or_rexec                                     30      17     -13
expand_variables                                    1434    1421     -13
open_transformer                                      91      76     -15
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/4 up/down: 23/-50)            Total: -27 bytes
2008-07-01 11:11:24 +00:00
Denis Vlasenko
3da5572bfa *: introduce and use xvfork()
function                                             old     new   delta
time_main                                           1052    1285    +233
crontab_main                                         623     856    +233
ifupdown_main                                       2202    2403    +201
xvfork                                                 -      20     +20
passwd_main                                         1049    1053      +4
grave                                               1068    1066      -2
script_main                                          935     921     -14
vfork_or_die                                          20       -     -20
vfork_compressor                                     206     175     -31
open_as_user                                         109       -    -109
popen2                                               218       -    -218
edit_file                                            910     690    -220
run_command                                          268       -    -268
------------------------------------------------------------------------------
(add/remove: 1/4 grow/shrink: 4/4 up/down: 691/-882)         Total: -191 bytes
2008-07-01 10:40:41 +00:00
Denis Vlasenko
defc1ea340 *: introduce and use FAST_FUNC: regparm on i386, otherwise no-on
text    data     bss     dec     hex filename
 808035     611    6868  815514   c719a busybox_old
 804472     611    6868  811951   c63af busybox_unstripped
2008-06-27 02:52:20 +00:00