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8999a290ab
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Jilles Tjoelker 8999a290ab sh: Fix executing wrong command with ${unsetvar#$(cmdsubst)}$(cmdsubst). 
The parsed internal representation of words consists of a byte string with a
list of nodes (commands in command substitution). Each unescaped CTLBACKQ or
CTLBACKQ | CTLQUOTE byte corresponds to an entry in the list.

If param in ${param#%##%%word} is not set, the word is not expanded (in a
deviation of POSIX shared with other ash variants and ksh93). Erroneously,
the pointer in the list of commands (argbackq) was not advanced. This caused
the wrong command to be executed later if the outer word contained another
command substitution.

Example:
  echo "${unsetvar#$(echo a)}$(echo b)"
wrote "a" but should write "b".

MFC after:	1 week
2017-03-10 16:04:00 +00:00
..
cat Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
chflags Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
chio Document where chio(1) originated from & which version of FreeBSD first included it. 2016-10-05 18:26:39 +00:00
chmod Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
cp Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
csh bin: normalize paths using SRCTOP-relative paths or :H when possible 2017-03-04 11:31:08 +00:00
date Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
dd Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
df bin: normalize paths using SRCTOP-relative paths or :H when possible 2017-03-04 11:31:08 +00:00
domainname Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
echo Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
ed Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
expr Document origins of expr & authors 2016-10-05 19:26:35 +00:00
freebsd-version bin: normalize paths using SRCTOP-relative paths or :H when possible 2017-03-04 11:31:08 +00:00
getfacl Explicitly add unmarked bin/ binaries to the runtime package. 2016-02-09 16:58:50 +00:00
hostname Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
kenv style(9). 2016-11-28 07:21:09 +00:00
kill Don't kill pid -1 on overflow from strtol(3). 2017-03-05 21:56:04 +00:00
ln Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
ls Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
mkdir Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
mv Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
pax Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
pkill Convert absolute links to relative links. 2017-03-07 05:10:38 +00:00
ps ps(1): Fix -w + UNLIMITED handling 2017-03-07 04:51:35 +00:00
pwait Rename some tests to end in _test. 2017-03-09 04:20:00 +00:00
pwd Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
rcp Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
realpath Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
rm Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
rmail bin: normalize paths using SRCTOP-relative paths or :H when possible 2017-03-04 11:31:08 +00:00
rmdir Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
setfacl Explicitly NUL terminate the buffer filled by fread(). 2016-06-08 05:32:39 +00:00
sh sh: Fix executing wrong command with ${unsetvar#$(cmdsubst)}$(cmdsubst). 2017-03-10 16:04:00 +00:00
sleep Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
stty Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
sync Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
test Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
tests Merge ^/user/ngie/release-pkg-fix-tests to unbreak how test files are installed 2016-05-04 23:20:53 +00:00
uuidgen uuid_to_string(3) is allocating memory and can fail on that. 2016-08-03 18:04:08 +00:00
Makefile Start using the fact that SUBDIR.yes is added to SUBDIR 2015-10-05 21:41:55 +00:00
Makefile.inc Use src.opts.mk in preference to bsd.own.mk except where we need stuff 2014-05-06 04:22:01 +00:00