[PATCH 5/6] posix: Remove the alloca uses from glob_in_dir

[Collin Funk]

Adhemerval Zanella <adhemerval.zanella@linaro.org> writes:

> What is left are the name used to stat a component without
> metacharacters and the blocks holding the matched names.  With those on
> the heap the alloca budget can go as well.
>
> Also treat the size overflow as an error.  It used to fall through
> to malloc with the wrapped size and then copy the full length
> into it.
>
> alloca is now used only by the MSDOS and Windows paths, which glibc
> does not build, so move its header out of the way as well.
>
> Checked on x86_64-linux-gnu, aarch64-linux-gnu, and i686-linux-gnu.
> ---
>  posix/glob.c | 68 +++++++++++++---------------------------------------
>  1 file changed, 17 insertions(+), 51 deletions(-)

This one looks good as well. I'll review the last patch tomorrow.

Reviewed-by: Collin Funk <collin.funk1@gmail.com>

Collin