[Toybox] freadahead()

[Rob Landley]

On 9/22/22 18:59, enh wrote:
> On Tue, Apr 12, 2022 at 9:02 PM Rob Landley wrote:
>     >     The number I'm looking for is "how many bytes can I read from the FILE
>     pointer
>     >     without triggering another underlying read from the fd" because I
>     can't re-read
>     >     that data from the fd. So I need to fetch the data out of the buffer
>     and handle
>     >     it before calling the "takes the rest as a filehandle" function. In
>     the case of
>     >     patch.c, something like reading the remaining FILE * data into
>     toybuf() and
>     >     doing a write() to the output fd before calling sendfile().
>     >
>     > ah, right. that makes more sense. yeah, i'll add this.
> 
>     Yay! Thank you.
> 
> well, that took a while, but better late than
> never: https://android-review.googlesource.com/c/platform/bionic/+/2227544

And now https://www.mail-archive.com/austin-group-l@opengroup.org/msg10171.html

Rob