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authorJune McEnroe <june@causal.agency>2019-11-20 20:13:24 -0500
committerJune McEnroe <june@causal.agency>2019-11-20 20:13:24 -0500
commit4b6556381032c4aad2bb002adb1ce87f6fb5a69d (patch)
tree0fe4218d13d20291d0bce69c0fdb634573487a40 /bin/1sh/mystring.c
parentRemove color from 1sh prompts (diff)
downloadsrc-4b6556381032c4aad2bb002adb1ce87f6fb5a69d.tar.gz
src-4b6556381032c4aad2bb002adb1ce87f6fb5a69d.zip
Remove PSlit
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0 files changed, 0 insertions, 0 deletions
 

generated by cgit-pink 1.4.1 (git 2.36.1) at 2025-02-19 23:16:43 +0000


 


src/commit/bin/hi.c?id=1ebce46abaa573479e9e0571217e963b1eefb506&follow=1'>Match whitespace between * [] {}June McEnroe
2019-02-18Fix function-like #define regexJune McEnroe
2019-02-18Match Tag in RustJune McEnroe
2019-02-18Match sh functions as TagJune McEnroe
2019-02-18Match Sh and Ss as Tag in mdocJune McEnroe
2019-02-18Match statics and typedefs as TagJune McEnroe
2019-02-18Clean up htmlHeaderJune McEnroe
2019-02-18Remove hi line numberingJune McEnroe
2019-02-18Add Tag class to hiJune McEnroe
2019-02-17Generate HTML with hi -n -f html -o anchorJune McEnroe
2019-02-17Add hi -f html -o anchor for line number linksJune McEnroe
2019-02-17Simplify temp trap in upJune McEnroe
2019-02-17Add line numbers to hiJune McEnroe
2019-02-17Always split spans after newlinesJune McEnroe
2019-02-15Color format specifiers light cyan in vimJune McEnroe
2019-02-15Highlight Interp as yellowJune McEnroe
2019-02-15Highlight strings in sh command substitutionsJune McEnroe
2019-02-15Add nmap gpJune McEnroe
2019-02-14Avoid newline when copying URL to pasteboardJune McEnroe
2019-02-13Add forgotten "sixth" book of H2G2June McEnroe2 -0400'>2017-08-31Choose B for tiles with equal modify timesJune McEnroe
2017-08-31Add quick data file merge toolJune McEnroe
2017-08-30Use only foreground color for selecting spawnJune McEnroe
2017-08-29Add four additional spawnsJune McEnroe
2017-08-28Add respawningJune McEnroe
2017-08-26Move license above includesJune McEnroe
2017-08-26Snapshot metadataJune McEnroe
2017-08-26Add meta.c to READMEJune McEnroe
2017-08-26Use MakefileJune McEnroe>2018-04-19eval: Restore input files in evalcommandHerbert Xu

When evalcommand invokes a command that modifies parsefile and
then bails out without popping the file, we need to ensure the
input file is restored so that the shell can continue to execute.

Reported-by: Martijn Dekker <martijn@inlv.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>



2018-04-19eval: Reap zombies after built-in commands and functionsHerbert Xu

Currently dash does not reap dead children after built-in commands
or functions.  This means that if you construct a loop consisting
of solely built-in commands and functions, then zombies can hang
around indefinitely.

This patch fixes this by reaping when necessary after each built-in
command and function.

Reported-by: Denys Vlasenko <vda.linux@googlemail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>



2018-04-19redir: Fix typo in noclobber codeHerbert Xu

The noclobber code has a typo in it that causes it to fail.  This
patch fixes it.

Reported-by: Denys Vlasenko <vda.linux@googlemail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>



2018-04-19expand: Fix glibc glob(3) supportHerbert Xu

It's been a while since we disabled glob(3) support by default.
It appears to be working now, however, we have to change our
code to detect the no-match case correctly.

In particular, we need to test for GLOB_NOMAGIC | GLOB_NOCHECK
instead of GLOB_MAGCHAR.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>



2018-04-02expand: Fix buffer overflow in expandmetaHerbert Xu

The native version of expandmeta allocates a buffer that may be
overrun for two reasons.  First of all the size is 1 byte too small
but this is normally hidden because the minimum size is rounded
up to 2048 bytes.  Secondly, if the directory level is deep enough,
any buffer can be overrun.

This patch fixes both problems by calling realloc when necessary.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>



2018-04-02builtin: Move echo space/nl handling into print_escape_strHerbert Xu

Currently echocmd uses print_escape_str to do everything apart
from printing the spaces/newlines separating its arguments.  This
patch moves the actual printing into print_escape_str as well
using the format parameter.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>



2018-04-02builtin: Fix echo performance regressionHerbert Xu

The commit d6c0e1e2ffbf7913ab69d51cc794d48d41c8fcb1 ("[BUILTIN]
Handle embedded NULs correctly in printf") caused a performance
regression in the echo built-in because every echo call now goes
through the printf %b slow path where the string is always printed
twice to ensure the space padding is correct in the presence of
NUL characters.  In fact this regression applies to printf %b as
well.

This is easily fixed by making printf %b take the fast path when
no precision/field width modifiers are present.

This patch also changes the second strchurnul call to strspn which
generates slightly better code.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>



2018-04-02expand: Fix ghost fields with unquoted $@/$*Herbert Xu

Harald van Dijk <harald@gigawatt.nl> wrote:
> On 22/03/2018 22:38, Martijn Dekker wrote:
>> Op 22-03-18 om 20:28 schreef Harald van Dijk:
>>> On 22/03/2018 03:40, Martijn Dekker wrote:
>>>> This patch fixes the bug that, given no positional parameters, unquoted
>>>> $@ and $* incorrectly generate one empty field (they should generate no
>>>> fields). Apparently that was a side effect of the above.
>>>
>>> This seems weird though. If you want to remove the recording of empty
>>> regions because they are pointless, then how does removing them fix a
>>> bug? Doesn't this show that empty regions do have an effect? Perhaps
>>> they're not supposed to have any effect, perhaps it's a specific
>>> combination of empty regions and something else that triggers some bug,
>>> and perhaps that combination can no longer occur with your patch.
>>
>> The latter is my guess, but I haven't had time to investigate it.
>
> Looking into it again:
>
> When IFS is set to an empty string, sepc is set to '\0' in varvalue().
> This then causes *quotedp to be set to true, meaning evalvar()'s quoted
> variable is turned on. quoted is then passed to recordregion() as the
> nulonly parameter.
>
> ifsp->nulonly has a bigger effect than merely selecting whether to use
> $IFS or whether to only split on null bytes: in ifsbreakup(), nulonly
> also causes string termination to be suppressed. That's correct: that
> special treatment is required to preserve empty fields in "$@"
> expansion. But it should *only* be used when $@ is quoted: ifsbreakup()
> takes nulonly from the last IFS region, even if it's empty, so having an
> additional zero-length region with nulonly enabled causes confusion.
>
> Passing quoted by value to varvalue() and not attempting to modify it
> should therefore, and in my quick testing does, also work to fix the
> original $@ bug.

You're right.  The proper fix to this is to ensure that nulonly
is not set in varvalue for $*.  It should only be set for $@ when
it's inside double quotes.

In fact there is another bug while we're playing with $@/$*.
When IFS is set to a non-whitespace character such as :, $*
outside quotes won't remove empty fields as it should.

This patch fixes both problems.

Reported-by: Martijn Dekker <martijn@inlv.org>
Suggested-by: Harald van Dijk <harald@gigawatt.nl>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>



2018-04-02parser: Allow newlines within parameter substitutionHerbert Xu

On Fri, Mar 16, 2018 at 11:27:22AM +0800, Herbert Xu wrote:
> On Thu, Mar 15, 2018 at 10:49:15PM +0100, Harald van Dijk wrote:
> >
> > Okay, it can be trivially modified to something that does work in other
> > shells (even if it were actually executed), but gets rejected at parse time
> > by dash:
> >
> >   if false; then
> >     : ${$+
> >   }
> >   fi
>
> That's just a bug in dash's parser with ${} in general, because
> it bombs out without the if clause too:
>
> 	: ${$+
> 	}

This patch fixes the parsing of newlines with parameter substitution.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>



2018-04-02expand: Fix bugs with words connected to the right of $@Herbert Xu

On Sun, Mar 04, 2018 at 12:44:59PM +0100, Harald van Dijk wrote:
>
> command:      set -- a ""; space=" "; printf "<%s>" "$@"$space
> bash:         <a><>
> dash 0.5.8:   <a>< >
> dash 0.5.9.1: <a>< >
> dash patched: <a><>

This is actually composed of two bugs.  First of all our tracking
of quotemark is wrong so anything after "$@" becomes quoted.  Once
we fix that then the problem is that the first space character
after "$@" is not recognised as an IFS.

This patch fixes both.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>



2018-03-25Revert "[BUILTIN] Remove unnecessary restoration of format string in printf"Herbert Xu

This reverts commit 7bb413255368e94395237d789f522891093c5774.

The commit breaks printf with more than argument.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>



2018-03-22parser: Fix backquote support in here-document EOF markHerbert Xu