On 03/27/2016 01:46 PM, Andy Chu wrote:
>> 3) Security features for distributed systems ... sh is obviously not
>> designed for untrusted input (including what's on the file system).
>
> 4) ... along these same lines, a lot of other people are annoyed by
> the gratuitous and crippled shell in make
On 03/27/2016 01:25 PM, Andy Chu wrote:
>> So I threw out CP_MORE as a bad idea, and almost all commands just have
>> the "include it or not" option now. There are a few global options, but
>> not many, and I may even eliminate some of those (I18N: the world has
>> utf8 now, deal with it).
>
> I a
FYI with these patches, and this addition to expr.test:
# Case that triggers ASAN error
testing "regex" "expr 3 : '\(.\)' = 4 : '\(.\)'" "0\n" "" ""
Then running the following command line shows a heap-use-after-free
error in expr, detected by ASAN. (Basically there are two regex
captures, and y
On Sun, Mar 27, 2016 at 2:25 PM, Andy Chu wrote:
> Sure I could just go change coreutils and bash ... I've been puzzling
> through the bash source code and considering that.
> bash is like 175K+ lines of code, and If you wanted to support all of
> it, I think you would end up with at least 50K
>> Anecdotally, it seems like a lot of shell script issues are caused by
>> unexpected existing state, but in a lot of cases you don't CARE about
>> the existing state -- you just want a final state (e.g. a bunch of
>> symlinks to toybox).
>
> "ln -sf" actually works pretty predictably. :)
One mor
> 3) Security features for distributed systems ... sh is obviously not
> designed for untrusted input (including what's on the file system).
4) ... along these same lines, a lot of other people are annoyed by
the gratuitous and crippled shell in make:
https://github.com/apenwarr/redo -- implement
> rm /usr/bin/toybox
> cp toybox /usr/bin/toybox #fails because cp is dangling symlink
>
> It's not a race condition, it's a "you can keep running a binary after
> it's deleted but can't launch new instances" problem.
OK I see now. Why not just:
mv /usr/bin/toybox /tmp/cp
/tmp/cp toybox /usr
