| Commit message (Collapse) | Author | Age |
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dash dies on sparc with a SIGBUS due to an arithmetic error introduced
with commit 03b4958, this patch fixes it.
---
> Hi Gerrit,
>
> dash 0.5.4-3 dies on sparc with a SIGBUS due to an arithmetic error
> introduced with the patch
> 0030-EXEC-Fixed-execing-of-scripts-with-no-hash-bang.diff. The
> attached
> patch fixes the problem.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The herefd hack goes back more than a decade. it limits the amount of
memory we have to allocate when expanding here-documents by writing the
result out from time to time. However, it's no longer safe because the
stack is used to place intermediate results too and there we certainly
don't want to write them out should we be short on memory.
In any case, with today's computers we can afford to keep the entire
result in memory and write them out at the end.
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This patch adds the badnum function and uses it to mostly replace the use
of illnum except in miscbltin where the current code turns out to be smaller
because of the twin sh_error calls.
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The function tryexec used the original name instead of the path found through
PATH search. This patch fixes that.
Test case:
trap 'rm -f $TMP' EXIT
TMP=$(tempfile -s nosuchthing)
cat <<- EOF > $TMP
echo OK
EOF
chmod u+x $TMP
cd /
PATH=${TMP%/*} ${TMP##*/}
Old result:
/bin/sh: Can't open filelgY4Fanosuchthing
New result:
OK
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Because the parser does not recursively parse parameter expansion with respect
to quotes, we can't accurately determine quote status at parse time. This
patch works around this by moving the quote detection to run-time where we
do interpret it recursively.
Test case:
foo=\\
echo "<${foo#[\\]}>"
Old result:
<\>
New result:
<>
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Since we know that dup2 must succeed here we can call it directly.
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On Tue, Jan 10, 2006 at 10:56:23AM +0000, Gerrit Pape wrote:
> tags 347232 + patch
> quit
>
> On Mon, Jan 09, 2006 at 04:29:19PM +0100, Marco Nenciarini wrote:
> > The problem is here:
> >
> > # Set the kernel 2.6 option only for fresh install
> > test -z "$(GetMenuOpt "kopt" "")" && kopt_2_6="root=$root_device_2_6 ro"
> >
> > # Extract options for specific kernels
> > eval $(ExtractMenuOpts "\(kopt_[a-zA-Z0-9_]\+\)")
> >
> > If the first test fails and the eval argument is empty then dash
> > terminate with exitcode 1.
>
> > This is a simple testcase:
> > tm:~# bash -c "set -e ;/bin/false && : ; eval ''; echo 'END'"; echo $?
> > END
> > 0
> > tm:~# dash -c "set -e ;/bin/false && : ; eval ''; echo 'END'"; echo $?
> > 1
> >
> > if you insert any command with successfull exit status before the
> > empty eval, all work ok:
> > tm:~# bash -c "set -e ;/bin/false && : ; : ; eval ''; echo 'END'"; echo $?
> > END
> > 0
> > tm:~# dash -c "set -e ;/bin/false && : ; : ; eval ''; echo 'END'"; echo $?
> > END
> > 0
>
> Yes, I can confirm this is a bug in dash. The standard says
>
> EXIT STATUS
>
> If there are no arguments, or only null arguments, eval shall
> return a zero exit status; otherwise, it shall return the exit
> status of the command defined by the string of concatenated
> arguments separated by <space>s.
>
> Hi Herbert, please see http://bugs.debian.org/347232
Changed evalstring to return the exit status instead of evalskip. This
allows us to return zero if the string is empty.
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This change updates the BSD licence to the three-clause version since
NetBSD has already done so. This makes dash GPL-compatible.
It also adds Christos Zoulas (NetBSD ash maintainer) to the COPYING file.
I've added "copyright by Herbert Xu" to most files.
Finally all CVS IDs and inclusion of sys/cdefs.h have been removed.
The latter is needed for support of klibc.
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Let evaltree handle traps from cmdloop.
Reset evalskip after minusc is executed.
Stop executing traps once SKIPEVAL is seen.
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This allows SKIPEVAL and SKIPFUNC to coexist which is needed for eval return 1.
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