Commit Graph

288 Commits

Author SHA1 Message Date
Denis Vlasenko
82dfec3e4e hush: fix hush-bugs/glob_and_vars.tests testcase:
globbing is now done _after_ variable/`cmd` substitution

function                                             old     new   delta
expand_strvec_to_strvec                                7     353    +346
expand_variables                                    1348    1383     +35
add_string_to_strings                                  -      28     +28
globhack                                             114       -    -114
done_word                                            778     579    -199
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 2/1 up/down: 409/-313)           Total: 96 bytes
2008-06-16 12:47:11 +00:00
Denis Vlasenko
5703c22a51 hush: eliminate PARSEFLAG_SEMICOLON and ctx->parse_type field.
function                                             old     new   delta
parse_and_run_file                                    30      27      -3
hush_main                                            795     792      -3
initialize_context                                    45      39      -6
done_word                                            791     778     -13
parse_and_run_stream                                 375     338     -37
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/5 up/down: 0/-62)             Total: -62 bytes
2008-06-15 11:49:42 +00:00
Denis Vlasenko
f8d01d3f66 hush: fix a bug where we were requiring semicolon here: (cmd;)
also fix a bug where after error prompt is not shown.

function                                             old     new   delta
parse_stream                                        1612    1638     +26
parse_and_run_stream                                 361     375     +14
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 40/0)               Total: 40 bytes
2008-06-14 17:13:20 +00:00
Denis Vlasenko
dd316dd283 hush: add support for ':'; create testsuite entries
text    data     bss     dec     hex filename
 809569     612    7044  817225   c7849 busybox_old
 809528     612    7044  817184   c7820 busybox_unstripped
2008-06-14 15:50:55 +00:00
Denis Vlasenko
a84420062a hush: support "! cmd | cmd" negation
function                                             old     new   delta
done_word                                            749     791     +42
run_list                                            1821    1859     +38
checkjobs                                            334     351     +17
done_pipe                                             61      74     +13
static.reserved_list                                 132     144     +12
initialize_context                                    53      45      -8
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 5/1 up/down: 122/-8)            Total: 114 bytes
2008-06-14 11:00:17 +00:00
Denis Vlasenko
7e3d33b6ce hush: speed up o_addX{chr,str}
function                                             old     new   delta
o_addQstr                                              -     162    +162
o_addQchr                                              -      89     +89
o_addstr                                               -      58     +58
o_addqchr                                             50      81     +31
expand_on_ifs                                        103      97      -6
add_till_backquote                                    92      82     -10
expand_variables                                    1281    1217     -64
parse_stream                                        1675    1609     -66
o_addqstr                                            155       -    -155
------------------------------------------------------------------------------
(add/remove: 3/1 grow/shrink: 1/4 up/down: 340/-301)           Total: 39 bytes
   text    data     bss     dec     hex filename
 759870     604    6684  767158   bb4b6 busybox_old
 759909     604    6684  767197   bb4dd busybox_unstripped
2008-06-12 13:31:04 +00:00
Denis Vlasenko
76db5adbf7 hush: fix for nested $()s with escapes + testsuite 2008-06-12 12:58:20 +00:00
Denis Vlasenko
87f40bac14 hush: more backtick and quoting fixes... 2008-06-10 22:39:37 +00:00
Denis Vlasenko
43360e5178 hush: fix escaping of \[*?; add testsuites for these and for globbing 2008-06-10 20:13:40 +00:00
Denis Vlasenko
2e76c3f901 hush: fix yet another fallout
hush: move fixed testsuites out of hush-bugs/*
2008-06-10 18:27:50 +00:00
Denis Vlasenko
895bea2303 hush: fix some fallout from prev commits, add testsuite 2008-06-10 18:06:24 +00:00
Denis Vlasenko
46ccdcb96e hush: search/and/replace style cleanups, no code changes 2008-06-10 18:05:12 +00:00
Denis Vlasenko
7b4f3f13d3 hush: fix two nasty bugs:
hush-bugs/tick2.tests: ok
hush-bugs/tick.tests: ok

function                                             old     new   delta
parse_stream                                        1332    1557    +225
b_addptr                                               -      97     +97
add_till_backquote                                     -      82     +82
b_addstr                                               -      58     +58
b_grow_by                                              -      50     +50
setup_string_in_str                                    -      29     +29
expand_variables                                    1196    1199      +3
expand_on_ifs                                        100      97      -3
b_addqchr                                             57      50      -7
parse_and_run_string                                  48      31     -17
lookup_param                                          27       -     -27
b_addchr                                              75      45     -30
count_ifs                                             44       -     -44
process_command_subs                                 222       -    -222
------------------------------------------------------------------------------
(add/remove: 5/3 grow/shrink: 2/4 up/down: 544/-350)          Total: 194 bytes
   text    data     bss     dec     hex filename
 759354     604    6684  766642   bb2b2 busybox_old
 759534     604    6684  766822   bb366 busybox_unstripped
2008-06-10 18:04:32 +00:00
Denis Vlasenko
76d50418b3 hush: fix a memory leak in NOMMU case 2008-06-10 16:19:39 +00:00
Denis Vlasenko
3fe4f986a0 less: fix a case when regexp matches ""
hush: remove wrong comment, expand another one
2008-06-09 16:02:39 +00:00
Denis Vlasenko
4830fc565a hush: make it ignore SIGINT etc in a config wich has no job control 2008-05-25 21:50:55 +00:00
Bernhard Reutner-Fischer
636a1f85e8 - use EXIT_{SUCCESS,FAILURE}. No object-code changes 2008-05-19 09:29:47 +00:00
Denis Vlasenko
7465dbcf2a ash: speed up NOFORK code in ash by eliminating second find_applet().
some code reduction along the way.

function                                             old     new   delta
run_list                                            1971    1981     +10
run_nofork_applet_prime                              181     182      +1
unsetcmd                                              97      96      -1
delete_cmd_entry                                      54      53      -1
describe_command                                     399     397      -2
cmdlookup                                            152     150      -2
evaltreenr                                           602     599      -3
evaltree                                             602     599      -3
clearcmdentry                                        101      98      -3
cdcmd                                                675     672      -3
hashcmd                                              305     301      -4
find_command                                         933     910     -23
evalcommand                                         1371    1229    -142
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/11 up/down: 11/-187)         Total: -176 bytes
2008-04-13 02:25:53 +00:00
Denis Vlasenko
0b6c6a9c9f lpd: fix OOM vulnerability (was eating arbitrarily large commands) 2008-03-24 00:04:42 +00:00
Denis Vlasenko
c93b162248 patch: shrink by Pascal Bellard <pascal.bellard AT ads-lu.com> (-80 bytes)
*: removal of #include <getopt.h>
2008-03-23 22:55:25 +00:00
Denis Vlasenko
f90ab183d6 *: use fopen_or_warn in few more places 2008-03-20 21:19:35 +00:00
Denis Vlasenko
68404f13d4 *: add -Wunused-parameter; fix resulting breakage
function                                             old     new   delta
procps_scan                                         1265    1298     +33
aliascmd                                             278     283      +5
parse_file_cmd                                       116     120      +4
dname_enc                                            373     377      +4
setcmd                                                90      93      +3
execcmd                                               57      60      +3
count_lines                                           72      74      +2
process_command_subs                                 340     339      -1
test_main                                            409     407      -2
mknod_main                                           179     177      -2
handle_incoming_and_exit                            2653    2651      -2
argstr                                              1312    1310      -2
shiftcmd                                             131     128      -3
exitcmd                                               46      43      -3
dotcmd                                               297     294      -3
breakcmd                                              86      83      -3
evalpipe                                             353     349      -4
evalcommand                                         1180    1176      -4
evalcmd                                              109     105      -4
send_tree                                            374     369      -5
mkfifo_main                                           82      77      -5
evalsubshell                                         152     147      -5
typecmd                                               75      69      -6
letcmd                                                61      55      -6
add_cmd                                             1190    1183      -7
main                                                 891     883      -8
ash_main                                            1415    1407      -8
parse_stream                                        1377    1367     -10
alloc_procps_scan                                     55       -     -55
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 7/21 up/down: 54/-148)          Total: -94 bytes
   text    data     bss     dec     hex filename
 797195     658    7428  805281   c49a1 busybox_old
 797101     658    7428  805187   c4943 busybox_unstripped
2008-03-17 09:00:54 +00:00
Denis Vlasenko
3f165fa5b3 libbb: introduce and use sigprocmask_allsigs and sigaction_set.
libbb: rename sig_pause to wait_for_any_sig.
2008-03-17 08:29:08 +00:00
Denis Vlasenko
8e2cfec1cd libbb: introduse and use signal_[no_]SA_RESTART_empty_mask and sigaction_set
signal_SA_RESTART_empty_mask                           -      65     +65
signal_no_SA_RESTART_empty_mask                        -      54     +54
dd_main                                             1325    1369     +44
sigaction_set                                          -      19     +19
dname_enc                                            373     377      +4
UNSPEC_print                                          64      66      +2
setsignal                                            296     294      -2
bb_signals_recursive                                  95      92      -3
bb_askpass                                           367     361      -6
inetd_main                                          1810    1797     -13
rx_main                                              912     883     -29
sigdelset                                             32       -     -32
__sigdelset                                           32       -     -32
__GI_sigdelset                                        32       -     -32
sighup_handler                                        84      37     -47
arping_main                                         1844    1797     -47
fsck_main                                           1869    1807     -62
run_list                                            1917    1844     -73
vlock_main                                           492     409     -83
progressmeter                                        883     798     -85
handle_incoming_and_exit                            2737    2651     -86
------------------------------------------------------------------------------
(add/remove: 3/3 grow/shrink: 3/12 up/down: 188/-632)        Total: -444 bytes
2008-03-12 23:19:35 +00:00
Denis Vlasenko
574f2f4394 *: add optimization barrier to all "G trick" locations 2008-02-27 18:41:59 +00:00
Denis Vlasenko
400d8bb45e less,klogd,syslogd,nc,tcpudp: exit on signal by killing itself, not exit(1)
*: minor shrink
2008-02-24 13:36:01 +00:00
Denis Vlasenko
e376d454bb libbb: introduce and use nonblock_safe_read(). Yay!
Our shells are immune from this nasty O_NONBLOCK now!

function                                             old     new   delta
nonblock_safe_read                                     -      78     +78
file_get                                             276     295     +19
generateMTFValues                                    428     435      +7
read_line_input                                     1776    1772      -4
preadbuffer                                          543     450     -93
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/2 up/down: 104/-97)             Total: 7 bytes
   text    data     bss     dec     hex filename
 615190     715   23924  639829   9c355 busybox_old
 615168     715   23924  639807   9c33f busybox_unstripped
2008-02-20 22:23:24 +00:00
Denis Vlasenko
25591c322c libbb: introduce bb_signals and bb_signals_recursive,
which sets same handler for many signals. sig_catch is nuked
(bb_signals_recursive is more descriptive name).
*: use them as appropriate. 

function                                             old     new   delta
bb_signals_recursive                                   -      95     +95
bb_signals                                             -      52     +52
run_command                                          258     273     +15
svlogd_main                                         1368    1377      +9
runsv_main                                          1746    1752      +6
runsvdir_main                                       1643    1646      +3
UNSPEC_print                                          64      66      +2
time_main                                           1128    1127      -1
...
resize_main                                          246     210     -36
sig_catch                                             63       -     -63
set_fatal_sighandler                                  85      14     -71
------------------------------------------------------------------------------
(add/remove: 2/1 grow/shrink: 5/24 up/down: 182/-548)        Total: -366 bytes
2008-02-16 22:58:56 +00:00
Denis Vlasenko
284d0faed6 random s/short/int/
add_cmd                                             1189    1190      +1
xconnect_ftpdata                                     118     117      -1
data_align                                            86      84      -2
process_files                                       2101    2096      -5
forkexec                                            1345    1334     -11
2008-02-16 13:18:17 +00:00
Denis Vlasenko
83177991c8 hush: die_sllep needs restoring only if job control is on 2008-02-11 08:44:36 +00:00
Denis Vlasenko
08126f665d hush: close-on-exec interactive_fd 2008-02-11 08:39:11 +00:00
Denis Vlasenko
459a5ad410 hush: set CLOEXEC on script file being executed 2008-02-11 08:35:03 +00:00
Denis Vlasenko
4ecfcdcced hush: fix the comment 2008-02-11 08:32:31 +00:00
Denis Vlasenko
c04163a289 hush: reset die_sleep to 0 in child after fork 2008-02-11 08:30:53 +00:00
Denis Vlasenko
05743d7949 hush: reinstate cmd handling for NOMMU (with fat big warning).
hush: fix a case where none of pipe members could be started
  because of fork failure
hush: rename functions: xxx_real -> xxx
hush: try to add a bit more of vfork-friendliness
hush: add rudimentary design docs
hush: add TODO (newly discovered bug with globbing)
2008-02-10 12:10:08 +00:00
Denis Vlasenko
847fa779af *: tidy up usage of char **environ 2008-01-28 22:45:43 +00:00
Denis Vlasenko
d2c450ce81 hush: report [v]fork failures
hush: more correct handling of piping
config: add CONFIG_NOMMU
2008-01-08 20:32:12 +00:00
Denis Vlasenko
fb0eba706c libbb: introduce and use safe_waitpid (loops in EINTR)
*: use more approproate (shorter) versions of wait()

function                                             old     new   delta
safe_waitpid                                           -      48     +48
wait_any_nohang                                        -      17     +17
send_tree                                            365     369      +4
processorstop                                        432     435      +3
text_yank                                            110     108      -2
make_human_readable_str                              202     200      -2
crond_main                                          1368    1366      -2
handle_sigchld                                        49      43      -6
reapchild                                            166     159      -7
custom                                               260     250     -10
checkscript                                          191     177     -14
wait_nohang                                           17       -     -17
wait_pid                                              43       -     -43
------------------------------------------------------------------------------
(add/remove: 2/2 grow/shrink: 2/7 up/down: 72/-103)           Total: -31 bytes
2008-01-02 19:55:04 +00:00
Denis Vlasenko
3b4921674e hush: fixlet for NOMMU
update TODO_config_nommu
2007-12-24 14:26:57 +00:00
Denis Vlasenko
1aa7e477b1 reorganize applet table. Eliminates pointers to names.
Should be a big win for libbusybox. busybox wins too:

   text    data     bss     dec     hex filename
 776524     929    9100  786553   c0079 busybox_old
 775903     929    9100  785932   bfe0c busybox_unstripped
2007-11-28 06:49:03 +00:00
Denis Vlasenko
fe5e23bf75 remove echo_main -> bb_echo indirection 2007-11-24 02:23:51 +00:00
Denis Vlasenko
c3c6659f12 hush: fix segfault in "echo $@" when we have no arguments 2007-11-24 00:22:42 +00:00
Denis Vlasenko
96702ca945 kill lash. "lash" builtin still exists, but it runs hush. 2007-11-23 23:28:55 +00:00
Denis Vlasenko
5bc593ccb8 hush: implement echo builtin
builtin_echo                                           -      36     +36
bltins                                               384     396     +12
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/0 up/down: 48/0)               Total: 48 bytes
2007-11-23 21:20:21 +00:00
Denis Vlasenko
cccdc4e01a hush: fix $ expansion in redirections, add testcase for that 2007-11-23 21:08:38 +00:00
Denis Vlasenko
835068637e hush: implement test builtin 2007-11-23 13:11:42 +00:00
Denis Vlasenko
f962a0354e hush: plug memory leak 2007-11-23 12:50:54 +00:00
Denis Vlasenko
9b49a5ed85 add -fvisibility=hidden to CC flags, mark XXX_main functions
EXTERNALLY_VISIBLE. 5% size reduction of libbusybox.so
2007-10-11 10:05:36 +00:00
Denis Vlasenko
82d38dab91 get rid of global "struct bb_applet *current_applet" 2007-10-10 14:38:47 +00:00
Denis Vlasenko
d65ea39ffc hush: fix glob() abuse. Code was making unfounded assumptions how
glob() works, and it broke horribly on specific uclibc config.
2007-10-01 10:02:25 +00:00
Denis Vlasenko
ff0976248a hush: int->smallint for flag vars; make some names more "greppable" 2007-10-01 10:00:45 +00:00
Denis Vlasenko
8412d7959a hush: feeble attempt at making it more NOMMU-friendly 2007-10-01 09:59:47 +00:00
Denis Vlasenko
a0898170d8 hush: stop doing manual acounting of open fd's, kernel can do it for us 2007-10-01 09:59:01 +00:00
Denis Vlasenko
96e1b38586 introduce and use close_on_exec_on(fd). -50 bytes. 2007-09-30 23:50:48 +00:00
Denis Vlasenko
4daad9004d introduce bb_putchar(). saves ~1800 on uclibc (less on glibc). 2007-09-27 10:20:47 +00:00
Denis Vlasenko
6ca409e0e4 trylink: produce even more info about final link stage
trylink: explain how to modify link and drastically decrease amount
  of padding (unfortunately, needs hand editing ATM).
*: add ALIGN1 / ALIGN2 to global strings and arrays of bytes and shorts

size saving: 0.5k
2007-08-12 20:58:27 +00:00
Denis Vlasenko
80b8b39899 Consolidate ARRAY_SIZE macro; remove one unneeded global var (walter harms <wharms@bfs.de>) 2007-06-25 10:55:35 +00:00
Denis Vlasenko
ca525b4f24 *: BB_BANNER -> bb_banner (it is not a const or #define)!
correct_password: explain in detail why it is ok to use bb_banner
fsck_minix: make it print bb version, not it's own (outdated/irrelevant) one

Marginal size difference:
   text    data     bss     dec     hex filename
 679119    2700   15632  697451   aa46b busybox_old
 679091    2700   15632  697423   aa44f busybox_unstripped
2007-06-13 12:27:17 +00:00
Denis Vlasenko
d67cef2425 hush: fix read builtin to not read ahead past eol and to not use
insane amounts of stack. Testsuite updated.
2007-06-13 06:47:47 +00:00
Denis Vlasenko
bdbbb7ec49 make busybox --install work even if /proc/self/exe doesn't exist
# size busybox_old busybox_unstripped
   text    data     bss     dec     hex filename
 680095    2704   15648  698447   aa84f busybox_old
 680099    2704   15648  698451   aa853 busybox_unstripped
2007-06-08 15:02:55 +00:00
Denis Vlasenko
27f79ff03d hush: trivial buglet found by randomconfig testing 2007-05-30 00:55:52 +00:00
Denis Vlasenko
4b924f3a5c whitespace fixes 2007-05-30 00:29:55 +00:00
Denis Vlasenko
b6adbf1be2 usage.c: remove reference to busybox.h
*: s/include "busybox.h"/include "libbb.h"
2007-05-26 19:00:18 +00:00
Denis Vlasenko
5a6aeddfa7 xpipe: introduce (saves ~170 bytes)
udhcp/signalpipe.c: use pipe instead of socketpair.
2007-05-26 16:44:20 +00:00
Denis Vlasenko
ba7cf260fd hush: fix 'echo abcsleep 5def' + Ctrl-Z and Ctrl-C bugs. +50 bytes of code. 2007-05-25 14:34:30 +00:00
Denis Vlasenko
0a83fc3984 hush: avoid duplicating HUSH_VERSION 2007-05-25 11:12:32 +00:00
Denis Vlasenko
201c72a8d6 hush: micro-optimization in new variable code 2007-05-25 10:00:36 +00:00
Denis Vlasenko
28c0f0f4fe hush: we can't do without variable->value member, saving 25 bytes of code
and some runtime memory. Rename few variables.
2007-05-25 02:46:01 +00:00
Denis Vlasenko
d76c049cc4 hush: rework variable storage and environment handling.
More that -100 bytes of code + memory leak plugged.
Added a testcase for it.
2007-05-25 02:16:25 +00:00
Denis Vlasenko
5a1437d835 hush: fix segfaulting syntax error in interactive hush 2007-05-24 13:22:47 +00:00
Denis Vlasenko
b055001b6a hush: fix handling of unmatched ${name (without closing '}') -
was eating all remaining input, potentially megabytes.
nofork: save/restore die_jmp too
nofork: use -2222 instead of -111 as "special" return valur for zero
(-111 is used by some applets. -2222 won't fit in exitcode and thus safer)
2007-05-24 12:18:16 +00:00
Denis Vlasenko
90e485ce79 hush: make syntax error messages a bit more useful 2007-05-23 15:22:50 +00:00
Denis Vlasenko
170435c575 hush: fix job control with eval /bin/external_prog
hush: fix parsing of unterminated "str with no EOL
hush: improved make_string() (smaller, faster, needs less RAM)
hush: renamed several functions
2007-05-23 13:01:10 +00:00
Denis Vlasenko
1a7358612f hush: fix a bit different instance of "No EOL" bug,
add testsuite for that. Expand another testsuite.
2007-05-23 00:32:25 +00:00
Denis Vlasenko
0681033918 hush: add 3 CONFIG_xxx, allowing for smaller and less capable hush.
Minimal hush is ~9k now (lash is ~7k).
2007-05-21 23:30:54 +00:00
Denis Vlasenko
219e88d050 hush: using smallints where we can. save ~20 bytes in code and
some data storage at runtime.
2007-05-21 10:18:23 +00:00
Denis Vlasenko
004baba2d6 hush: fix shift + $0 bug; add testcase 2007-05-20 22:22:18 +00:00
Denis Vlasenko
262d765351 hush: trivial size optimization 2007-05-20 21:52:49 +00:00
Denis Vlasenko
14b5dd9943 hush: make process substitution configurable; add a testcase 2007-05-20 21:51:38 +00:00
Denis Vlasenko
c8be5ee325 hush: do "struct globals" trick. hush.o data+bss = 0 bytes now.
+60 bytes to image, but -8000 bytes in bss.
2007-05-17 15:38:46 +00:00
Denis Vlasenko
b6a741ffa7 hush: consolidated variable expansion for assignments and "normal" one.
-435 bytes. Tested against testsuite.
2007-05-17 14:38:17 +00:00
Denis Vlasenko
96f67dc69d more compile fixes from randomconfig run 2007-05-17 13:02:41 +00:00
Denis Vlasenko
c666f71e3b hush: take care of several easy FIXMEs. -228 bytes. 2007-05-16 22:18:54 +00:00
Denis Vlasenko
831dcc439c hush: another microscopic typo fix 2007-05-16 15:05:36 +00:00
Denis Vlasenko
c29903221d hush: fix English in comment 2007-05-16 12:57:12 +00:00
Denis Vlasenko
3e7b0e6120 hush: simplify read builtin; fix set_local_var (misplaced 'goto skip;') 2007-05-16 12:52:15 +00:00
Denis Vlasenko
1f4cf517f5 hush: fix expansion of quoted $VAR, $* and $@ 2007-05-16 10:39:24 +00:00
Denis Vlasenko
8f6bdb42df hush: fix incorrect processing of echo "'$var'".
hush: rename map[] and MAP_xxx, making them easier to understand.
hush: move testcase (which now passes) from hush-bugs to hush-parsing
2007-05-16 09:36:55 +00:00
Denis Vlasenko
764d59d488 hush: more fixes to variable expansion, more testcases 2007-05-14 16:23:23 +00:00
Denis Vlasenko
03eb8bf6ce hush: move towards more correct variable expansion
hush: fix a few cases in FOR v IN ... construct
      unfortunately, code growth is big - ~600 bytes
2007-05-14 16:19:34 +00:00
Denis Vlasenko
602d13cba5 hush: fix '{ false; echo $?; }' bug.
hush: expand testsuite. variable expansion is still very broken
2007-05-13 18:34:53 +00:00
Denis Vlasenko
3e9aaae5dc hush: fix bug in interactive shell introduced yesterday
hush: fix `process subst` (2 bugs)
NB: will delete and re-add hush_test in order to change file modes
2007-05-11 12:56:43 +00:00
Denis Vlasenko
e0a336747c hush: fix "unterminated last line loops forever" bug
hush: add testsuite infrastructure
2007-05-10 23:06:55 +00:00
Denis Vlasenko
53079d494e hush: fix recent breakage (VAR=VAL stopped working) 2007-05-10 23:05:28 +00:00
Denis Vlasenko
21f0d4c55e hush: fix double-free in "echo TEST &" 2007-05-06 14:15:42 +00:00
Denis Vlasenko
dd4cb2b31e hush: stop generating extra empty pipes in parse stage. 2007-05-05 15:11:40 +00:00
Denis Vlasenko
a6c467f6d1 hush: preparatory patch for removing extra empty pipes generation
in parse stage. No real code change here.
2007-05-05 15:10:52 +00:00
Denis Vlasenko
ac0e5ab96a hush: fix "while true; do true; done" + ctrl-z 2007-05-04 21:37:27 +00:00
Denis Vlasenko
400c5b6fc6 hush: add parse tree debug print 2007-05-04 13:07:27 +00:00
Denis Vlasenko
e725bfe6e0 hush: fix "true | exit 3; echo $?" bug 2007-05-03 22:45:39 +00:00