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

[enh]

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