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231 Commits

Author SHA1 Message Date
Ron Yorston
549deab5ab ash: move parse-time quote flag detection to run-time 
Because the parser does not recursively parse parameter expansion
with respect to quotes, we can't accurately determine quote status at
parse time.  This patch works around this by moving the quote detection
to run-time where we do interpret it recursively.

Test case:
   foo=\\ echo "<${foo#[\\]}>"
Old result:
   <\>
New result:
   <>

Do not quote back slashes in parameter expansions outside quotes.

Test case:
   a=/b/c/*
   b=\\
   echo ${a%$b*}
Old result:
   /b/c/*
New result:
   /b/c/

Based on commits 880d952, 7cfd8be, 0d7d660 and a7c21a6 from
git://git.kernel.org/pub/scm/utils/dash/dash.git by Herbert Xu

function                                             old     new   delta
argstr                                              1164    1193     +29
memtodest                                            147     174     +27
subevalvar                                          1153    1177     +24
redirect                                            1279    1282      +3
dolatstr                                               5       7      +2
static.spclchars                                      10       9      -1
expandarg                                            962     960      -2
evalcase                                             273     271      -2
evalcommand                                         1204    1197      -7
rmescapes                                            236     227      -9
preglob                                               27       8     -19
evalvar                                              604     582     -22
cmdputs                                              389     334     -55
readtoken1                                          3163    3061    -102
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 5/9 up/down: 85/-219)          Total: -134 bytes

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-05-18 09:57:51 +02:00
Ron Yorston
ad88bdee0c ash: remove arithmetic expansion collapsing at parse time 
Collapsing arithmetic expansion is incorrect when the inner arithmetic
expansion is a part of a parameter expansion.

Test case:
   unset a
   echo $((3 + ${a:=$((4 + 5))}))
   echo $a
Old result:
   12
   (4 + 5)
New result:
   12
   9

Based on commit bb777a6 from git://git.kernel.org/pub/scm/utils/dash/dash.git
by Herbert Xu

function                                             old     new   delta
readtoken1                                          3180    3163     -17

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-05-18 09:56:16 +02:00
Ron Yorston
3df47f9cbb ash: do not expand tilde in parameter expansion within quotes 
Test case:
   unset a
   echo "${a:-~root}"
Old result:
   /root
New result:
   ~root

Based on commit 170f44d from git://git.kernel.org/pub/scm/utils/dash/dash.git
by Herbert Xu

function                                             old     new   delta
evalvar                                              598     604      +6
parse_command                                       1440    1443      +3
localcmd                                             325     327      +2
readtoken1                                          3199    3200      +1
argstr                                              1180    1164     -16
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/1 up/down: 12/-16)             Total: -4 bytes

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-05-18 09:53:26 +02:00
Ron Yorston
eb6b48ba74 ash: perform tilde expansion in all parameter expansion words 
Previously tilde expansion was not carried out for =?#% expansion words.

Test case:
   a=~root:~root
   echo ${a#~root}
Old result:
   /root:/root
New result:
   :/root

Based on commit dd721f71 from git://git.kernel.org/pub/scm/utils/dash/dash.git
by Herbert Xu

function                                             old     new   delta
subevalvar                                          1152    1153      +1

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-05-18 09:51:35 +02:00
Denys Vlasenko
0a0acb55db ash: fix handling of duplicate "local" 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-04-18 19:36:38 +02:00
Denys Vlasenko
7e66102f76 ash: fix a SEGV case in an invalid heredoc 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2015-02-05 21:00:17 +01:00
Denys Vlasenko
109ee5d336 ash: make "locak VAR" unset VAR (bash does that) 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2014-03-16 18:41:11 +01:00
Denys Vlasenko
f451b2cfe0 ash: fix a bug in >${varexp} handling. Closes 5282 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2012-06-09 02:06:57 +02:00
Denys Vlasenko
bac0a25f72 slightly better wording in comments 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-02-21 03:47:50 +01:00
Denys Vlasenko
b12553faa8 ash: fix ash-signals/signal8 testcase failure 
function                                             old     new   delta
killcmd                                              109     224    +115
kill_main                                            882     910     +28
changepath                                           194     195      +1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 144/0)             Total: 144 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-02-21 03:22:20 +01:00
Denys Vlasenko
8ee2adab21 echo: do not retry on write errors 
function                                             old     new   delta
echo_main                                            297     336     +39
stpcpy                                                 -      22     +22
run_pipe                                            1561    1566      +5
pseudo_exec_argv                                     187     192      +5
hush_exit                                             75      80      +5
------------------------------------------------------------------------------
(add/remove: 3/0 grow/shrink: 4/0 up/down: 98/0)               Total: 76 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2011-02-07 02:03:51 +01:00
Denys Vlasenko
fb132e4737 whitespace cleanup 
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
 2010-10-29 11:46:52 +02:00
Denys Vlasenko
b563f62bbb ash: fix signal and "set -e" interaction 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-09-25 17:15:13 +02:00
Denys Vlasenko
bed7c81ea2 shell/math: deconvolute and explain ?: handling. Give better error message 
function                                             old     new   delta
arith_apply                                         1271    1283     +12

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
 2010-09-16 11:50:46 +02:00
Denys Vlasenko
063847d6bd shell/math: return string error indicator, not integer 
function                                             old     new   delta
expand_and_evaluate_arith                             87     106     +19
expand_one_var                                      1563    1570      +7
arith                                                 12      18      +6
evaluate_string                                      678     680      +2
arith_apply                                         1269    1271      +2
builtin_umask                                        133     132      -1
ash_arith                                            118      75     -43
expand_vars_to_list                                 1094    1038     -56
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 5/3 up/down: 36/-100)           Total: -64 bytes

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
 2010-09-15 13:33:02 +02:00
Denys Vlasenko
36f774a0cd hush: add support for ${var/pattern/repl}, conditional on bash compat 
function                                             old     new   delta
expand_vars_to_list                                 2386    2833    +447
expand_string_to_string                               69     110     +41
parse_dollar                                         681     721     +40
hush_main                                            963     945     -18
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/1 up/down: 528/-18)           Total: 510 bytes

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
 2010-09-05 14:47:58 +02:00
Denys Vlasenko
e298ce69ba hush: fix handling of backslashes in variable assignment 
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
 2010-09-04 19:52:44 +02:00
Denys Vlasenko
f7a8433535 ash: add another ${v/a/b} test we currently fail 
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
 2010-08-30 13:54:12 +02:00
Denys Vlasenko
33bbb27e45 ash: fix another bit of var_bash4 bug 
But it _still_ doesn't pass! quoted case is a tough nut to crack

function                                             old     new   delta
redirect                                            1281    1286      +5
subevalvar                                          1141    1142      +1

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-08-07 22:24:36 +02:00
Denys Vlasenko
c8d305d89f var_bash4.tests: better wording in comment 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-08-06 19:28:04 +02:00
Denys Vlasenko
f56fe82542 update var_bash4 test. one more bug revealed by it now... 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-08-06 17:21:52 +02:00
Denys Vlasenko
6814cbc928 ash: extend var_bash4.tests; nocode changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-08-05 18:29:13 +02:00
Denys Vlasenko
b0fbe4b540 ash: add a testcase for bug 2281 (currently fails). Small code cleanups. 
function                                             old     new   delta
changepath                                           195     192      -3
subevalvar                                          1204    1200      -4
readtoken1                                          3247    3240      -7
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-14)             Total: -14 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-08-05 17:19:27 +02:00
Alexander Shishkin
ccb9771861 ash: fix $! value when traps are set 
Signed-off-by: Alexander Shishkin <virtuoso@slind.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-07-25 13:07:39 +02:00
Denys Vlasenko
fd33e17a2b ash: fix obscure case of replacing + globbing + backslashes 
function                                             old     new   delta
subevalvar                                          1152    1178     +26
readtoken1                                          3267    3275      +8
redirect                                            1284    1286      +2
expandarg                                            957     958      +1
expdir                                                 4       -      -4
evalcommand                                         1219    1209     -10
expmeta                                              481     469     -12
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 4/2 up/down: 37/-26)             Total: 11 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-06-26 22:55:44 +02:00
Andreas Bühmann
da75f44844 ash: <> redir should not truncate 
Signed-off-by: Andreas Bühmann <buehmann@users.berlios.de>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-06-24 04:32:37 +02:00
Denys Vlasenko
7df28bbb8f ash: fix unset in standalone mode 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-06-18 14:23:47 +02:00
Denys Vlasenko
08d8b3cee1 ash: fix redirection of fd 0 in scripts are sourced from interactive ash 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-06-03 04:28:28 +02:00
Denys Vlasenko
42c4b2e3b5 ash: fix var_leak.tests so that it actually catches the NOFORK bug 
+ document the bug better

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-18 16:13:56 +02:00
Denys Vlasenko
238bf187ba ash: fix bug which causes signal6.tests to fail 
function                                             old     new   delta
trapcmd                                              271     277      +6
localcmd                                             277     275      -2

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-18 15:49:07 +02:00
Denys Vlasenko
51b4a9e2f1 ash: fix var_leak testcase 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-18 14:35:20 +02:00
Denys Vlasenko
5e2d572381 ash: fix testsuite false positives 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-18 14:11:21 +02:00
Denys Vlasenko
cd10dc40e4 ash: fix ". empty_file" exitcode. +5 bytes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-17 17:10:46 +02:00
Denys Vlasenko
786cce1871 fix false positive in signal5.tests 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-17 10:14:20 +02:00
Denys Vlasenko
0f01b00d74 add two more tests which currently fail 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-17 04:57:55 +02:00
Denys Vlasenko
7c1ed9fbde ash: fix signal5.tests 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-17 04:42:40 +02:00
Denys Vlasenko
27ff681cfa ash: add two testcases for (not yet fixed) ash bugs 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-05-17 02:56:18 +02:00
Denys Vlasenko
496d5bf4c6 ash: trap with bad signal name should not abort 
function                                             old     new   delta
trapcmd                                              236     271     +35

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-03-26 15:52:24 +01:00
Denys Vlasenko
7426920461 fix bug 1087. Fix by Leonid (lly.dev AT gmail.com) 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-02-21 01:26:42 +01:00
Denys Vlasenko
7306727d1b shell: split read builtin from ash 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-01-12 22:11:24 +01:00
Denys Vlasenko
8cd04d1cb6 ash: fix for read $IFS splitting. Closes bug 235 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2010-01-08 15:44:07 +01:00
Denys Vlasenko
e3c6e19015 laguage and copyright date corrections, no code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-10-09 23:35:30 +02:00
Denys Vlasenko
3dc4a3e4dc ash: make one testsuite entry more robust 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-10-09 23:08:28 +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
21d87d495a ash: better handling of EXIT trap in trap hack 
function                                             old     new   delta
forkchild                                              -     602    +602
trapcmd                                              255     347     +92
ash_main                                            1362    1375     +13
evalvar                                             1371    1373      +2
popstring                                            140     134      -6
forkshell                                            835     248    -587
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 3/2 up/down: 709/-593)          Total: 116 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-09-25 00:06:51 +02:00
Denys Vlasenko
844f990926 ash: fix trap 
function                                             old     new   delta
forkshell                                            738     810     +72
popstring                                            134     140      +6
parse_command                                       1460    1463      +3
evalvar                                             1373    1371      -2
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/1 up/down: 81/-2)              Total: 79 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-09-23 03:25:52 +02:00
Denys Vlasenko
795633463a add a testcase for reopened bug 585 (not fixed yet) 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-09-16 14:04:07 +02:00
Denys Vlasenko
9f2e82ad2e ash: add testsuite for bug 585 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2009-08-29 20:37:09 +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
Denis Vlasenko
46aeab9a34 ash: fix $IFS handling in read. closes bug 235 2009-03-31 19:18:17 +00:00
Denis Vlasenko
727752d2d2 ash: better fix for ash -c 'echo 5&' and ash -c 'sleep 5&' 
with testcase
 2008-11-28 03:41:47 +00:00
Denis Vlasenko
6214941a3a ash: add testcase for bug 5304 2008-10-27 14:33:03 +00:00
Denis Vlasenko
078323010b dc: conditionalize parts which require libm 2008-10-20 08:43:10 +00:00
Denis Vlasenko
b730474bda ash: fix NOEXEC mode - we were forgetting to pass environment! 
env: promote to NOEXEC
hd: promote to NOEXEC, as hexdump is NOEXEC already
 2008-10-20 08:15:51 +00:00
Denis Vlasenko
d1660cb9ad ash: fix a bug in standalone mode (corrupted getopt() state) 2008-10-20 07:52:33 +00:00
Denis Vlasenko
34c73c499b ash: fix "(cat < file)" hang introduced by rev 22944. 2008-08-16 11:48:02 +00:00
Denis Vlasenko
c90e1be01b ash: bash compat: "shift $BIGNUM" is equivalent to "shift 1" 2008-07-30 15:35:05 +00:00
Denis Vlasenko
8dbea7dbb1 ash: add slightly different testcase 2008-07-26 14:20:04 +00:00
Denis Vlasenko
5c13270359 ash: fix testcase to not sleep for whole 10 seconds, 
gets annoying pretty fast. Also fix wrong message there.
 2008-07-26 13:53:42 +00:00
Denis Vlasenko
4e19a9c81a ash: hopefully close bug 4324. With testcase. 
function                                             old     new   delta
evaltree                                             621     869    +248
popstring                                            134     140      +6
 2008-07-26 13:45:57 +00:00
Denis Vlasenko
2b2e267b43 ash: testsuite entries for last change 2008-07-25 13:40:06 +00:00
Denis Vlasenko
22f7414843 ash: prevent exec NN>&- from closing fd used for script reading 2008-07-24 22:34:43 +00:00
Denis Vlasenko
5a867317bb ash: fix a bug where redirection fds were not closed afterwards. 
optimize close+fcntl(DUPFD) into dup2. add testsuites.

function                                             old     new   delta
copyfd                                                47      68     +21
argstr                                              1311    1298     -13
popredir                                             148     131     -17
redirect                                            1139    1107     -32
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/3 up/down: 21/-62)            Total: -41 bytes
 2008-07-24 19:46:38 +00:00
Denis Vlasenko
ef527f50e6 ash: optional support for $'...\t...\n...' bashism 
function                                             old     new   delta
readtoken1                                          2824    3172    +348
static.C_escapes                                       -      18     +18
parse_command                                       1504    1500      -4
SIT                                                   89      83      -6
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/2 up/down: 366/-10)           Total: 356 bytes
 2008-06-23 01:52:30 +00:00
Denis Vlasenko
2659c63213 ash: fix ${var/s/r} handling, add testcase. 2008-06-14 06:04:59 +00:00
Denis Vlasenko
66d56c565e ash testsuite: modify it so that it can run hush and msh tests 2008-06-05 09:07:02 +00:00
Bernhard Reutner-Fischer
636a1f85e8 - use EXIT_{SUCCESS,FAILURE}. No object-code changes 2008-05-19 09:29:47 +00:00
Denis Vlasenko
6d1ebecf65 ash: add another testsuite entry ("leaking variables" bug) 2008-04-13 17:45:56 +00:00
Denis Vlasenko
f78a656f7c ash: a bit more complete POSIX subst testsuite entry 2008-04-12 23:02:43 +00:00
Denis Vlasenko
033424a213 ash: add testsuite entry for POSIX-mandated ${var#word} ${var##word} 
${var%word} ${var%%word}
 2008-04-12 22:55:33 +00:00
Denis Vlasenko
80591b0a00 ash: support for && and || in [[ expr ]]; add testsuite checks 2008-03-25 07:49:43 +00:00
Denis Vlasenko
59f351ccda ash: add read -u; fix read -t and read -n; add testsuite entries. 2008-03-25 00:07:12 +00:00
Denis Vlasenko
0e6f661e23 ash: handle "A=1 A=2 B=$A; echo $B". closes bug 947. 2008-02-15 15:02:15 +00:00
Denis Vlasenko
65eb550024 reinstate redir.tests with correct perms 2008-02-13 18:10:46 +00:00
Denis Vlasenko
81887e2342 ash: add a testcase for recently fixed signal bug 2008-02-13 18:09:56 +00:00
Denis Vlasenko
7d75a96b15 ash: fix bug where redirection of closed fd was leaving it open afterwards. 
redirect                                             983    1024     +41
bb_echo                                              276     301     +25
popredir                                             118     132     +14
evalcommand                                         1163    1176     +13
bbunpack                                             358     366      +8
echocmd                                               13       5      -8
echo_main                                             13       5      -8
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 5/2 up/down: 101/-16)            Total: 85 bytes
   text    data     bss     dec     hex filename
 774999     962    9236  785197   bfb2d busybox_old
 775084     962    9236  785282   bfb82 busybox_unstripped
 2007-11-22 08:16:57 +00:00
Denis Vlasenko
c86e052b81 fix accumulated whitespace and indentation damage 2007-03-20 11:30:28 +00:00
Denis Vlasenko
8e858e2700 clean up accumulated whitespace damage 2007-03-07 09:35:43 +00:00
Denis Vlasenko
9431e564aa ash: "here document" testcases 2007-03-05 21:08:29 +00:00
Denis Vlasenko
140644dc1c add ash testcases 2007-03-05 20:46:46 +00:00
Denis Vlasenko
1c660b4bd2 small ash testsuite, adapted from bash 
(only a small part of it, actually)
 2007-03-05 00:27:50 +00:00