[Toybox] [PATCH] Implement `file -`.

[Rob Landley]

Yeah, my fault. Sorry.

I should just make the mmap() failure fail gracefully and not provide that part
of the elf information. Lemme make a stab at that...

Rob

On 05/25/2018 12:30 AM, enh wrote:
> ping?
> On Mon, May 7, 2018 at 1:35 PM Rob Landley <rob at landley.net> wrote:
> 
>> I got distracted over the weekend, but lemme see if I can come up with a
> more
>> elegant solution this evening before falling back to that plan.
> 
>> Thanks,
> 
>> Rob
> 
>> On 05/07/2018 01:50 PM, enh wrote:
>>> testing with `cat boot.img | strace file -` it looks like FSF
>>> allocates a ~10MiB buffer and reads it all in. (rather than copying to
>>> a temporary file.)
>>>
>>> happy to supply that patch instead if you prefer?
>>>
>>> On Sat, May 5, 2018 at 4:45 PM, Rob Landley <rob at landley.net> wrote:
>>>> On 05/05/2018 06:19 PM, enh wrote:
>>>>> AFK, but I'm using glibc too, from Debian testing.
>>>>
>>>> I found it, the stdin case is using the stat.length value to see how
> much to
>>>> read but never did the stat, so it's uninitialized stack crap. When
> it's zero...
>>>>
>>>> Oops. Oddly enough, the compiler did not complain!
>>>>
>>>> Needs a design tweak to figure out what the length _should_ be in this
> case.
>>>> Maybe that read-into-memory suggestion with like a 256k cap or
> something?
>>>> Working on it...
>>>>
>>>> Rob
>>>
>