Denys Vlasenko
41d8f10813
hush: fix corner cases with exec in empty expansions
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Cases like these:
var=val exec >redir
var=val `` >redir
function old new delta
run_pipe 1701 1723 +22
redirect_and_varexp_helper 56 55 -1
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(add/remove: 0/0 grow/shrink: 1/1 up/down: 22/-1) Total: 21 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-05 14:41:21 +02:00
Denys Vlasenko
9acd63c92c
ash,hush: fix "saved" redirected fds still visible in children
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Based on a patch by Mark Marshall <mark.marshall@omicronenergy.com>
function old new delta
dup_CLOEXEC - 49 +49
fcntl_F_DUPFD 46 - -46
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-03-28 18:35:07 +02:00
Denys Vlasenko
035486c750
ash: significant overhaul of redirect saving logic
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New code is similar to what hush is doing.
Make CLOSED to -1: same as dash.
popredir() loses "restore" parameter: same as dash.
COPYFD_RESTORE bit is no longer necessary.
This change fixes this interactive bug:
$ ls -l /proc/$$/fd 10>&-
ash: can't set tty process group: Bad file descriptor
ash: can't set tty process group: Bad file descriptor
[1]+ Done(2) ls -l /proc/${\$}/fd 10>&4294967295
function old new delta
unwindredir 29 27 -2
tryexec 154 152 -2
evaltree 503 501 -2
evalcommand 1369 1367 -2
cmdloop 187 185 -2
redirect 1029 1018 -11
popredir 153 123 -30
need_to_remember 36 - -36
is_hidden_fd 68 - -68
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(add/remove: 0/2 grow/shrink: 0/7 up/down: 0/-155) Total: -155 bytes
text data bss dec hex filename
914572 485 6848 921905 e1131 busybox_old
914553 485 6848 921886 e111e busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-31 04:21:46 +02:00
Denys Vlasenko
111cdcf295
shell: sync redir/* tests
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Note: hush-redir/redir_to_bad_fd.tests currently fails
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-06 21:01:50 +02:00
Denys Vlasenko
1ff1a75710
ash: rename redir5.tests (hush has redir5.tests which is different)
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-06 21:00:19 +02:00
Denys Vlasenko
86584e134e
ash: fix open fds leaking in redirects. Closes 9561
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commit e19923f665
2017-01-07 10:16:56 +01:00
Denys Vlasenko
df303ae117
sh testsuite: sync ash-redir/ and hush-redir/
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-10-02 18:32:52 +02:00
Denys Vlasenko
c4cf542c57
sh testsuite: create hush-redir/* and move files around
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-10-02 17:55:51 +02:00
Denys Vlasenko
1b8e0e8adf
ash testsuite: remove two more inadvertent bashisms
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-10-01 17:43:04 +02:00
Denys Vlasenko
f451b2cfe0
ash: fix a bug in >${varexp} handling. Closes 5282
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-06-09 02:06:57 +02:00
Denys Vlasenko
8ee2adab21
echo: do not retry on write errors
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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
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(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
b0fbe4b540
ash: add a testcase for bug 2281 (currently fails). Small code cleanups.
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function old new delta
changepath 195 192 -3
subevalvar 1204 1200 -4
readtoken1 3247 3240 -7
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(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
Andreas Bühmann
da75f44844
ash: <> redir should not truncate
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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
5e2d572381
ash: fix testsuite false positives
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-05-18 14:11:21 +02:00
Denys Vlasenko
795633463a
add a testcase for reopened bug 585 (not fixed yet)
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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
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-08-29 20:37:09 +02:00
Denis Vlasenko
34c73c499b
ash: fix "(cat < file)" hang introduced by rev 22944.
2008-08-16 11:48:02 +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.
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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
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.
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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
